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cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Търсене в Уикипедия" aria-label="Търсене в Уикипедия" autocapitalize="sentences" title="Претърсване на Уикипедия [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Специални:Търсене"> </div> <button class="cdx-button cdx-search-input__end-button">Търсене</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Лични инструменти"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Облик"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Облик" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Облик</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_bg.wikipedia.org&uselang=bg" class=""><span>Направете дарение</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A1%D1%8A%D0%B7%D0%B4%D0%B0%D0%B2%D0%B0%D0%BD%D0%B5_%D0%BD%D0%B0_%D1%81%D0%BC%D0%B5%D1%82%D0%BA%D0%B0&returnto=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD+%D0%BD%D0%B0+%D0%9E%D0%BC" title="Насърчаваме Ви да си създадете сметка и да влезете, въпреки че не е задължително." class=""><span>Създаване на сметка</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A0%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B8%D1%80%D0%B0%D0%BD%D0%B5_%D0%B8%D0%BB%D0%B8_%D0%B2%D0%BB%D0%B8%D0%B7%D0%B0%D0%BD%D0%B5&returnto=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD+%D0%BD%D0%B0+%D0%9E%D0%BC" title="Препоръчваме Ви да влезете, въпреки, че не е задължително. [o]" accesskey="o" class=""><span>Влизане</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Допълнителни опции" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Лични инструменти" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Лични инструменти</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Потребителско меню" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_bg.wikipedia.org&uselang=bg"><span>Направете дарение</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A1%D1%8A%D0%B7%D0%B4%D0%B0%D0%B2%D0%B0%D0%BD%D0%B5_%D0%BD%D0%B0_%D1%81%D0%BC%D0%B5%D1%82%D0%BA%D0%B0&returnto=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD+%D0%BD%D0%B0+%D0%9E%D0%BC" title="Насърчаваме Ви да си създадете сметка и да влезете, въпреки че не е задължително."><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Създаване на сметка</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A0%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%B8%D1%80%D0%B0%D0%BD%D0%B5_%D0%B8%D0%BB%D0%B8_%D0%B2%D0%BB%D0%B8%D0%B7%D0%B0%D0%BD%D0%B5&returnto=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD+%D0%BD%D0%B0+%D0%9E%D0%BC" title="Препоръчваме Ви да влезете, въпреки, че не е задължително. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Влизане</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Страници за излезли от системата редактори <a href="/wiki/%D0%9F%D0%BE%D0%BC%D0%BE%D1%89:%D0%92%D1%8A%D0%B2%D0%B5%D0%B4%D0%B5%D0%BD%D0%B8%D0%B5" aria-label="Научете повече за редактирането"><span>научете повече</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%9C%D0%BE%D0%B8%D1%82%D0%B5_%D0%BF%D1%80%D0%B8%D0%BD%D0%BE%D1%81%D0%B8" title="Списък на промените, направени от този IP адрес [y]" accesskey="y"><span>Приноси</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%9C%D0%BE%D1%8F%D1%82%D0%B0_%D0%B1%D0%B5%D1%81%D0%B5%D0%B4%D0%B0" title="Дискусия относно редакциите от този адрес [n]" accesskey="n"><span>Беседа</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Сайт"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Съдържание" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Съдържание</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">преместване към страничната лента</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">скриване</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Начало</div> </a> </li> <li id="toc-История_на_закона_на_Ом" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#История_на_закона_на_Ом"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>История на закона на Ом</span> </div> </a> <ul id="toc-История_на_закона_на_Ом-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Закон_на_Ом_в_интегрална_форма" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Закон_на_Ом_в_интегрална_форма"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Закон на Ом в интегрална форма</span> </div> </a> <ul id="toc-Закон_на_Ом_в_интегрална_форма-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Закон_на_Ом_в_диференциална_форма" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Закон_на_Ом_в_диференциална_форма"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Закон на Ом в диференциална форма</span> </div> </a> <ul id="toc-Закон_на_Ом_в_диференциална_форма-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Закон_на_Ом_за_променлив_ток" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Закон_на_Ом_за_променлив_ток"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Закон на Ом за променлив ток</span> </div> </a> <ul id="toc-Закон_на_Ом_за_променлив_ток-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Източници" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Източници"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Източници</span> </div> </a> <ul id="toc-Източници-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Вижте_също" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Вижте_също"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Вижте също</span> </div> </a> <ul id="toc-Вижте_също-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Съдържание" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Скриване/показване на съдържанието" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Скриване/показване на съдържанието</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Закон на Ом</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Към статията на друг език. Налична на 96 езика" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-96" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">96 езика</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Ohm_se_wet" title="Ohm se wet – африканс" lang="af" hreflang="af" data-title="Ohm se wet" data-language-autonym="Afrikaans" data-language-local-name="африканс" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%82%D8%A7%D9%86%D9%88%D9%86_%D8%A3%D9%88%D9%85" title="قانون أوم – арабски" lang="ar" hreflang="ar" data-title="قانون أوم" data-language-autonym="العربية" data-language-local-name="арабски" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Llei_d%27Ohm" title="Llei d'Ohm – астурски" lang="ast" hreflang="ast" data-title="Llei d'Ohm" data-language-autonym="Asturianu" data-language-local-name="астурски" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Om_qanunu" title="Om qanunu – азербайджански" lang="az" hreflang="az" data-title="Om qanunu" data-language-autonym="Azərbaycanca" data-language-local-name="азербайджански" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%9E%D0%BC%D0%B0" title="Закон Ома – беларуски" lang="be" hreflang="be" data-title="Закон Ома" data-language-autonym="Беларуская" data-language-local-name="беларуски" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%93%E2%80%8D%E2%80%99%E0%A6%AE%E0%A7%87%E0%A6%B0_%E0%A6%B8%E0%A7%82%E0%A6%A4%E0%A7%8D%E0%A6%B0" title="ও‍’মের সূত্র – бенгалски" lang="bn" hreflang="bn" data-title="ও‍’মের সূত্র" data-language-autonym="বাংলা" data-language-local-name="бенгалски" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/Lezenn_Ohm" title="Lezenn Ohm – бретонски" lang="br" hreflang="br" data-title="Lezenn Ohm" data-language-autonym="Brezhoneg" data-language-local-name="бретонски" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Ohmov_zakon" title="Ohmov zakon – босненски" lang="bs" hreflang="bs" data-title="Ohmov zakon" data-language-autonym="Bosanski" data-language-local-name="босненски" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Llei_d%27Ohm" title="Llei d'Ohm – каталонски" lang="ca" hreflang="ca" data-title="Llei d'Ohm" data-language-autonym="Català" data-language-local-name="каталонски" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%DB%8C%D8%A7%D8%B3%D8%A7%DB%8C_%D8%A6%DB%86%D9%85" title="یاسای ئۆم – кюрдски (централен)" lang="ckb" hreflang="ckb" data-title="یاسای ئۆم" data-language-autonym="کوردی" data-language-local-name="кюрдски (централен)" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Ohm%C5%AFv_z%C3%A1kon" title="Ohmův zákon – чешки" lang="cs" hreflang="cs" data-title="Ohmův zákon" data-language-autonym="Čeština" data-language-local-name="чешки" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9E%D0%BC_%D1%81%D0%B0%D0%BA%D0%BA%D1%83%D0%BD%C4%95" title="Ом саккунĕ – чувашки" lang="cv" hreflang="cv" data-title="Ом саккунĕ" data-language-autonym="Чӑвашла" data-language-local-name="чувашки" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Deddf_Ohm" title="Deddf Ohm – уелски" lang="cy" hreflang="cy" data-title="Deddf Ohm" data-language-autonym="Cymraeg" data-language-local-name="уелски" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Ohms_lov" title="Ohms lov – датски" lang="da" hreflang="da" data-title="Ohms lov" data-language-autonym="Dansk" data-language-local-name="датски" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Ohmsches_Gesetz" title="Ohmsches Gesetz – немски" lang="de" hreflang="de" data-title="Ohmsches Gesetz" data-language-autonym="Deutsch" data-language-local-name="немски" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9D%CF%8C%CE%BC%CE%BF%CF%82_%CF%84%CE%BF%CF%85_%CE%A9%CE%BC" title="Νόμος του Ωμ – гръцки" lang="el" hreflang="el" data-title="Νόμος του Ωμ" data-language-autonym="Ελληνικά" data-language-local-name="гръцки" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-eml mw-list-item"><a href="https://eml.wikipedia.org/wiki/Legg_d%27Ohm" title="Legg d'Ohm – Emiliano-Romagnolo" lang="egl" hreflang="egl" data-title="Legg d'Ohm" data-language-autonym="Emiliàn e rumagnòl" data-language-local-name="Emiliano-Romagnolo" class="interlanguage-link-target"><span>Emiliàn e rumagnòl</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Ohm%27s_law" title="Ohm's law – английски" lang="en" hreflang="en" data-title="Ohm's law" data-language-autonym="English" data-language-local-name="английски" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Le%C4%9Do_de_Omo" title="Leĝo de Omo – есперанто" lang="eo" hreflang="eo" data-title="Leĝo de Omo" data-language-autonym="Esperanto" data-language-local-name="есперанто" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Ley_de_Ohm" title="Ley de Ohm – испански" lang="es" hreflang="es" data-title="Ley de Ohm" data-language-autonym="Español" data-language-local-name="испански" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Ohmi_seadus" title="Ohmi seadus – естонски" lang="et" hreflang="et" data-title="Ohmi seadus" data-language-autonym="Eesti" data-language-local-name="естонски" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Ohmen_legea" title="Ohmen legea – баски" lang="eu" hreflang="eu" data-title="Ohmen legea" data-language-autonym="Euskara" data-language-local-name="баски" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-ext mw-list-item"><a href="https://ext.wikipedia.org/wiki/Lei_d%27Ohm" title="Lei d'Ohm – Extremaduran" lang="ext" hreflang="ext" data-title="Lei d'Ohm" data-language-autonym="Estremeñu" data-language-local-name="Extremaduran" class="interlanguage-link-target"><span>Estremeñu</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%82%D8%A7%D9%86%D9%88%D9%86_%D8%A7%D9%87%D9%85" title="قانون اهم – персийски" lang="fa" hreflang="fa" data-title="قانون اهم" data-language-autonym="فارسی" data-language-local-name="персийски" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Ohmin_laki" title="Ohmin laki – фински" lang="fi" hreflang="fi" data-title="Ohmin laki" data-language-autonym="Suomi" data-language-local-name="фински" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fo mw-list-item"><a href="https://fo.wikipedia.org/wiki/Ohms_l%C3%B3g" title="Ohms lóg – фарьорски" lang="fo" hreflang="fo" data-title="Ohms lóg" data-language-autonym="Føroyskt" data-language-local-name="фарьорски" class="interlanguage-link-target"><span>Føroyskt</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Loi_d%27Ohm" title="Loi d'Ohm – френски" lang="fr" hreflang="fr" data-title="Loi d'Ohm" data-language-autonym="Français" data-language-local-name="френски" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Dl%C3%AD_Ohm" title="Dlí Ohm – ирландски" lang="ga" hreflang="ga" data-title="Dlí Ohm" data-language-autonym="Gaeilge" data-language-local-name="ирландски" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gd mw-list-item"><a href="https://gd.wikipedia.org/wiki/Dlighe_Ohm" title="Dlighe Ohm – шотландски келтски" lang="gd" hreflang="gd" data-title="Dlighe Ohm" data-language-autonym="Gàidhlig" data-language-local-name="шотландски келтски" class="interlanguage-link-target"><span>Gàidhlig</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Lei_de_Ohm" title="Lei de Ohm – галисийски" lang="gl" hreflang="gl" data-title="Lei de Ohm" data-language-autonym="Galego" data-language-local-name="галисийски" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%97%D7%95%D7%A7_%D7%90%D7%95%D7%94%D7%9D" title="חוק אוהם – иврит" lang="he" hreflang="he" data-title="חוק אוהם" data-language-autonym="עברית" data-language-local-name="иврит" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%93%E0%A4%AE_%E0%A4%95%E0%A4%BE_%E0%A4%A8%E0%A4%BF%E0%A4%AF%E0%A4%AE" title="ओम का नियम – хинди" lang="hi" hreflang="hi" data-title="ओम का नियम" data-language-autonym="हिन्दी" data-language-local-name="хинди" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/Ohmov_zakon" title="Ohmov zakon – хърватски" lang="hr" hreflang="hr" data-title="Ohmov zakon" data-language-autonym="Hrvatski" data-language-local-name="хърватски" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Lwa_%C3%92m" title="Lwa Òm – хаитянски креолски" lang="ht" hreflang="ht" data-title="Lwa Òm" data-language-autonym="Kreyòl ayisyen" data-language-local-name="хаитянски креолски" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Ohm_t%C3%B6rv%C3%A9nye" title="Ohm törvénye – унгарски" lang="hu" hreflang="hu" data-title="Ohm törvénye" data-language-autonym="Magyar" data-language-local-name="унгарски" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%95%D5%B0%D5%B4%D5%AB_%D6%85%D6%80%D5%A5%D5%B6%D6%84" title="Օհմի օրենք – арменски" lang="hy" hreflang="hy" data-title="Օհմի օրենք" data-language-autonym="Հայերեն" data-language-local-name="арменски" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Hukum_Ohm" title="Hukum Ohm – индонезийски" lang="id" hreflang="id" data-title="Hukum Ohm" data-language-autonym="Bahasa Indonesia" data-language-local-name="индонезийски" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Ohmsl%C3%B6gm%C3%A1l" title="Ohmslögmál – исландски" lang="is" hreflang="is" data-title="Ohmslögmál" data-language-autonym="Íslenska" data-language-local-name="исландски" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Legge_di_Ohm" title="Legge di Ohm – италиански" lang="it" hreflang="it" data-title="Legge di Ohm" data-language-autonym="Italiano" data-language-local-name="италиански" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E3%82%AA%E3%83%BC%E3%83%A0%E3%81%AE%E6%B3%95%E5%89%87" title="オームの法則 – японски" lang="ja" hreflang="ja" data-title="オームの法則" data-language-autonym="日本語" data-language-local-name="японски" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9E%D0%BC_%D0%B7%D0%B0%D2%A3%D1%8B" title="Ом заңы – казахски" lang="kk" hreflang="kk" data-title="Ом заңы" data-language-autonym="Қазақша" data-language-local-name="казахски" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%98%B4%EC%9D%98_%EB%B2%95%EC%B9%99" title="옴의 법칙 – корейски" lang="ko" hreflang="ko" data-title="옴의 법칙" data-language-autonym="한국어" data-language-local-name="корейски" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/Qan%C3%BBna_Ohm" title="Qanûna Ohm – кюрдски" lang="ku" hreflang="ku" data-title="Qanûna Ohm" data-language-autonym="Kurdî" data-language-local-name="кюрдски" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%9E%D0%BC_%D0%BC%D1%8B%D0%B9%D0%B7%D0%B0%D0%BC%D1%8B" title="Ом мыйзамы – киргизки" lang="ky" hreflang="ky" data-title="Ом мыйзамы" data-language-autonym="Кыргызча" data-language-local-name="киргизки" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Wet_van_Ohm" title="Wet van Ohm – лимбургски" lang="li" hreflang="li" data-title="Wet van Ohm" data-language-autonym="Limburgs" data-language-local-name="лимбургски" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Lesg_de_l%27Ohm" title="Lesg de l'Ohm – ломбардски" lang="lmo" hreflang="lmo" data-title="Lesg de l'Ohm" data-language-autonym="Lombard" data-language-local-name="ломбардски" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Omo_d%C4%97snis" title="Omo dėsnis – литовски" lang="lt" hreflang="lt" data-title="Omo dėsnis" data-language-autonym="Lietuvių" data-language-local-name="литовски" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Oma_likums" title="Oma likums – латвийски" lang="lv" hreflang="lv" data-title="Oma likums" data-language-autonym="Latviešu" data-language-local-name="латвийски" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Lalan%27i_Ohm" title="Lalan'i Ohm – малгашки" lang="mg" hreflang="mg" data-title="Lalan'i Ohm" data-language-autonym="Malagasy" data-language-local-name="малгашки" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9E%D0%BC%D0%BE%D0%B2_%D0%B7%D0%B0%D0%BA%D0%BE%D0%BD" title="Омов закон – македонски" lang="mk" hreflang="mk" data-title="Омов закон" data-language-autonym="Македонски" data-language-local-name="македонски" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%93%E0%B4%AE%E0%B4%BF%E0%B4%A8%E0%B5%8D%E0%B4%B1%E0%B5%86_%E0%B4%A8%E0%B4%BF%E0%B4%AF%E0%B4%AE%E0%B4%82" title="ഓമിന്റെ നിയമം – малаялам" lang="ml" hreflang="ml" data-title="ഓമിന്റെ നിയമം" data-language-autonym="മലയാളം" data-language-local-name="малаялам" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%9E%D0%BC%D1%8B%D0%BD_%D1%85%D1%83%D1%83%D0%BB%D1%8C" title="Омын хууль – монголски" lang="mn" hreflang="mn" data-title="Омын хууль" data-language-autonym="Монгол" data-language-local-name="монголски" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%93%E0%A4%B9%E0%A5%8D%E0%A4%AE%E0%A4%9A%E0%A4%BE_%E0%A4%A8%E0%A4%BF%E0%A4%AF%E0%A4%AE" title="ओह्मचा नियम – марати" lang="mr" hreflang="mr" data-title="ओह्मचा नियम" data-language-autonym="मराठी" data-language-local-name="марати" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Hukum_Ohm" title="Hukum Ohm – малайски" lang="ms" hreflang="ms" data-title="Hukum Ohm" data-language-autonym="Bahasa Melayu" data-language-local-name="малайски" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%A1%E1%80%AF%E1%80%99%E1%80%BA%E1%80%B8%E1%81%8F_%E1%80%94%E1%80%AD%E1%80%9A%E1%80%AC%E1%80%99" title="အုမ်း၏ နိယာမ – бирмански" lang="my" hreflang="my" data-title="အုမ်း၏ နိယာမ" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="бирмански" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Ohmsch_Gesett" title="Ohmsch Gesett – долнонемски" lang="nds" hreflang="nds" data-title="Ohmsch Gesett" data-language-autonym="Plattdüütsch" data-language-local-name="долнонемски" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%93%E0%A4%B9%E0%A4%AE%E0%A4%95%E0%A5%8B_%E0%A4%A8%E0%A4%BF%E0%A4%AF%E0%A4%AE" title="ओहमको नियम – непалски" lang="ne" hreflang="ne" data-title="ओहमको नियम" data-language-autonym="नेपाली" data-language-local-name="непалски" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Wet_van_Ohm" title="Wet van Ohm – нидерландски" lang="nl" hreflang="nl" data-title="Wet van Ohm" data-language-autonym="Nederlands" data-language-local-name="нидерландски" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Ohms_lov" title="Ohms lov – норвежки (нюношк)" lang="nn" hreflang="nn" data-title="Ohms lov" data-language-autonym="Norsk nynorsk" data-language-local-name="норвежки (нюношк)" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Ohms_lov" title="Ohms lov – норвежки (букмол)" lang="nb" hreflang="nb" data-title="Ohms lov" data-language-autonym="Norsk bokmål" data-language-local-name="норвежки (букмол)" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/L%C3%A8i_d%27Ohm" title="Lèi d'Ohm – окситански" lang="oc" hreflang="oc" data-title="Lèi d'Ohm" data-language-autonym="Occitan" data-language-local-name="окситански" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-or mw-list-item"><a href="https://or.wikipedia.org/wiki/%E0%AC%93%E0%AC%AE%27%E0%AC%99%E0%AD%8D%E0%AC%95_%E0%AC%A8%E0%AC%BF%E0%AD%9F%E0%AC%AE" title="ଓମ'ଙ୍କ ନିୟମ – ория" lang="or" hreflang="or" data-title="ଓମ'ଙ୍କ ନିୟମ" data-language-autonym="ଓଡ଼ିଆ" data-language-local-name="ория" class="interlanguage-link-target"><span>ଓଡ଼ିଆ</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%93%E0%A8%B9%E0%A8%AE_%E0%A8%A6%E0%A8%BE_%E0%A8%A8%E0%A8%BF%E0%A8%AF%E0%A8%AE" title="ਓਹਮ ਦਾ ਨਿਯਮ – пенджабски" lang="pa" hreflang="pa" data-title="ਓਹਮ ਦਾ ਨਿਯਮ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="пенджабски" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Prawo_Ohma" title="Prawo Ohma – полски" lang="pl" hreflang="pl" data-title="Prawo Ohma" data-language-autonym="Polski" data-language-local-name="полски" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Lej_d%27Ohm" title="Lej d'Ohm – Piedmontese" lang="pms" hreflang="pms" data-title="Lej d'Ohm" data-language-autonym="Piemontèis" data-language-local-name="Piedmontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%A7%D9%88%DB%81%D9%85_%D8%AF%D8%A7_%D9%82%D9%86%D9%88%D9%86" title="اوہم دا قنون – Western Punjabi" lang="pnb" hreflang="pnb" data-title="اوہم دا قنون" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Lei_de_Ohm" title="Lei de Ohm – португалски" lang="pt" hreflang="pt" data-title="Lei de Ohm" data-language-autonym="Português" data-language-local-name="португалски" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Legea_lui_Ohm" title="Legea lui Ohm – румънски" lang="ro" hreflang="ro" data-title="Legea lui Ohm" data-language-autonym="Română" data-language-local-name="румънски" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%9E%D0%BC%D0%B0" title="Закон Ома – руски" lang="ru" hreflang="ru" data-title="Закон Ома" data-language-autonym="Русский" data-language-local-name="руски" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Liggi_di_Ohm" title="Liggi di Ohm – сицилиански" lang="scn" hreflang="scn" data-title="Liggi di Ohm" data-language-autonym="Sicilianu" data-language-local-name="сицилиански" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Ohm%27s_law" title="Ohm's law – шотландски" lang="sco" hreflang="sco" data-title="Ohm's law" data-language-autonym="Scots" data-language-local-name="шотландски" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Ohmov_zakon" title="Ohmov zakon – сърбохърватски" lang="sh" hreflang="sh" data-title="Ohmov zakon" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="сърбохърватски" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%95%E0%B6%B8%E0%B7%8A_%E0%B6%B1%E0%B7%92%E0%B6%BA%E0%B6%B8%E0%B6%BA" title="ඕම් නියමය – синхалски" lang="si" hreflang="si" data-title="ඕම් නියමය" data-language-autonym="සිංහල" data-language-local-name="синхалски" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Ohm%27s_law" title="Ohm's law – Simple English" lang="en-simple" hreflang="en-simple" data-title="Ohm's law" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Ohmov_z%C3%A1kon" title="Ohmov zákon – словашки" lang="sk" hreflang="sk" data-title="Ohmov zákon" data-language-autonym="Slovenčina" data-language-local-name="словашки" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-skr mw-list-item"><a href="https://skr.wikipedia.org/wiki/%D8%A7%D9%88%DB%81%D9%85_%D8%AF%D8%A7_%D9%82%D9%86%D9%88%D9%86" title="اوہم دا قنون – Saraiki" lang="skr" hreflang="skr" data-title="اوہم دا قنون" data-language-autonym="سرائیکی" data-language-local-name="Saraiki" class="interlanguage-link-target"><span>سرائیکی</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Ohmov_zakon" title="Ohmov zakon – словенски" lang="sl" hreflang="sl" data-title="Ohmov zakon" data-language-autonym="Slovenščina" data-language-local-name="словенски" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Ligji_i_Omit" title="Ligji i Omit – албански" lang="sq" hreflang="sq" data-title="Ligji i Omit" data-language-autonym="Shqip" data-language-local-name="албански" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9E%D0%BC%D0%BE%D0%B2_%D0%B7%D0%B0%D0%BA%D0%BE%D0%BD" title="Омов закон – сръбски" lang="sr" hreflang="sr" data-title="Омов закон" data-language-autonym="Српски / srpski" data-language-local-name="сръбски" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Ohms_lag" title="Ohms lag – шведски" lang="sv" hreflang="sv" data-title="Ohms lag" data-language-autonym="Svenska" data-language-local-name="шведски" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%93%E0%AE%AE%E0%AE%BF%E0%AE%A9%E0%AF%8D_%E0%AE%B5%E0%AE%BF%E0%AE%A4%E0%AE%BF" title="ஓமின் விதி – тамилски" lang="ta" hreflang="ta" data-title="ஓமின் விதி" data-language-autonym="தமிழ்" data-language-local-name="тамилски" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%93%E0%B0%AE%E0%B1%8D_%E0%B0%A8%E0%B0%BF%E0%B0%AF%E0%B0%AE%E0%B0%82" title="ఓమ్ నియమం – телугу" lang="te" hreflang="te" data-title="ఓమ్ నియమం" data-language-autonym="తెలుగు" data-language-local-name="телугу" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%81%E0%B8%8E%E0%B8%82%E0%B8%AD%E0%B8%87%E0%B9%82%E0%B8%AD%E0%B8%AB%E0%B9%8C%E0%B8%A1" title="กฎของโอห์ม – тайски" lang="th" hreflang="th" data-title="กฎของโอห์ม" data-language-autonym="ไทย" data-language-local-name="тайски" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Batas_ni_Ohm" title="Batas ni Ohm – тагалог" lang="tl" hreflang="tl" data-title="Batas ni Ohm" data-language-autonym="Tagalog" data-language-local-name="тагалог" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Ohm_kanunu" title="Ohm kanunu – турски" lang="tr" hreflang="tr" data-title="Ohm kanunu" data-language-autonym="Türkçe" data-language-local-name="турски" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%9E%D0%BC_%D0%BA%D0%B0%D0%BD%D1%83%D0%BD%D1%8B" title="Ом кануны – татарски" lang="tt" hreflang="tt" data-title="Ом кануны" data-language-autonym="Татарча / tatarça" data-language-local-name="татарски" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%9E%D0%BC%D0%B0" title="Закон Ома – украински" lang="uk" hreflang="uk" data-title="Закон Ома" data-language-autonym="Українська" data-language-local-name="украински" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D9%82%D8%A7%D9%86%D9%88%D9%86_%D8%A7%D9%88%DB%81%D9%85" title="قانون اوہم – урду" lang="ur" hreflang="ur" data-title="قانون اوہم" data-language-autonym="اردو" data-language-local-name="урду" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Ohm_qonuni" title="Ohm qonuni – узбекски" lang="uz" hreflang="uz" data-title="Ohm qonuni" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="узбекски" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%90%E1%BB%8Bnh_lu%E1%BA%ADt_Ohm" title="Định luật Ohm – виетнамски" lang="vi" hreflang="vi" data-title="Định luật Ohm" data-language-autonym="Tiếng Việt" data-language-local-name="виетнамски" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Balaod_ni_Ohm" title="Balaod ni Ohm – варай" lang="war" hreflang="war" data-title="Balaod ni Ohm" data-language-autonym="Winaray" data-language-local-name="варай" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E6%AC%A7%E5%A7%86%E5%AE%9A%E5%BE%8B" title="欧姆定律 – ву китайски" lang="wuu" hreflang="wuu" data-title="欧姆定律" data-language-autonym="吴语" data-language-local-name="ву китайски" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E6%AC%A7%E5%A7%86%E5%AE%9A%E5%BE%8B" title="欧姆定律 – китайски" lang="zh" hreflang="zh" data-title="欧姆定律" data-language-autonym="中文" data-language-local-name="китайски" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E6%AD%90%E5%A7%86%E5%AE%9A%E5%BE%8B" title="歐姆定律 – Literary Chinese" lang="lzh" hreflang="lzh" data-title="歐姆定律" data-language-autonym="文言" data-language-local-name="Literary Chinese" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Ohm_%C3%AA_hoat-chek" title="Ohm ê hoat-chek – Minnan" lang="nan" hreflang="nan" data-title="Ohm ê hoat-chek" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="Minnan" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E6%AD%90%E5%A7%86%E5%AE%9A%E5%BE%8B" title="歐姆定律 – кантонски" lang="yue" hreflang="yue" data-title="歐姆定律" data-language-autonym="粵語" data-language-local-name="кантонски" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q41591#sitelinks-wikipedia" title="Редактиране на междуезиковите препратки" class="wbc-editpage">Редактиране</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Именни пространства"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC" title="Преглед на основната страница [c]" accesskey="c"><span>Статия</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a 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class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Инструменти</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">преместване към страничната лента</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">скриване</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Допълнителни опции" > <div class="vector-menu-heading"> Действия </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC"><span>Преглед</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&veaction=edit" title="Редактиране на страницата [v]" accesskey="v"><span>Редактиране</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&action=edit" title="Редактиране на изходния код на страницата [e]" accesskey="e"><span>Редактиране на кода</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&action=history"><span>История</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Основни </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%9A%D0%B0%D0%BA%D0%B2%D0%BE_%D1%81%D0%BE%D1%87%D0%B8_%D0%BD%D0%B0%D1%81%D0%B0%D0%BC/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC" title="Списък на всички страници, сочещи насам [j]" accesskey="j"><span>Какво сочи насам</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A1%D0%B2%D1%8A%D1%80%D0%B7%D0%B0%D0%BD%D0%B8_%D0%BF%D1%80%D0%BE%D0%BC%D0%B5%D0%BD%D0%B8/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC" rel="nofollow" title="Последните промени на страници, сочени от тази страница [k]" accesskey="k"><span>Свързани промени</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/MediaWiki:Uploadtext" title="Качи файлове [u]" accesskey="u"><span>Качване на файл</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8_%D1%81%D1%82%D1%80%D0%B0%D0%BD%D0%B8%D1%86%D0%B8" title="Списък на всички специални страници [q]" accesskey="q"><span>Специални страници</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&oldid=12100567" title="Постоянна препратка към тази версия на страницата"><span>Постоянна препратка</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&action=info" title="Повече за тази страница"><span>Информация за страницата</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%A6%D0%B8%D1%82%D0%B8%D1%80%D0%B0%D0%BD%D0%B5&page=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&id=12100567&wpFormIdentifier=titleform" title="Информация за начините за цитиране на тази страница"><span>Цитиране на статията</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:UrlShortener&url=https%3A%2F%2Fbg.wikipedia.org%2Fwiki%2F%25D0%2597%25D0%25B0%25D0%25BA%25D0%25BE%25D0%25BD_%25D0%25BD%25D0%25B0_%25D0%259E%25D0%25BC"><span>Кратък URL адрес</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:QrCode&url=https%3A%2F%2Fbg.wikipedia.org%2Fwiki%2F%25D0%2597%25D0%25B0%25D0%25BA%25D0%25BE%25D0%25BD_%25D0%25BD%25D0%25B0_%25D0%259E%25D0%25BC"><span>Изтегляне на QR код</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Отпечатване/изнасяне </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:Book&bookcmd=book_creator&referer=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD+%D0%BD%D0%B0+%D0%9E%D0%BC"><span>Създаване на книга</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:DownloadAsPdf&page=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&action=show-download-screen"><span>Изтегляне като PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&printable=yes" title="Версия за печат на страницата [p]" accesskey="p"><span>Версия за печат</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> В други проекти </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Ohm%27s_law" hreflang="en"><span>Общомедия</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q41591" title="Препратка към свързания обект от хранилището за данни [g]" accesskey="g"><span>Обект в Уикиданни</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Облик"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Облик</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">преместване към страничната лента</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">скриване</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">от Уикипедия, свободната енциклопедия</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="bg" dir="ltr"><table class="vertical-navbox nowraplinks" style="float:right;clear:right;width:22.0em;margin:0 0 1.0em 1.0em;background:#f9f9f9;border:1px solid #aaa;padding:0.2em;border-spacing:0.4em 0;text-align:center;line-height:1.4em;font-size:88%"><tbody><tr><td style="padding-top:0.4em;line-height:1.2em">Серия статии на тема</td></tr><tr><th class="title physic" style="padding:0.2em 0.4em 0.2em;padding-top:0;font-size:145%;line-height:1.2em;background-color:#D4D4FF; padding: 0.7em"><a href="/wiki/%D0%9A%D0%BB%D0%B0%D1%81%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0_%D0%B5%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%B4%D0%B8%D0%BD%D0%B0%D0%BC%D0%B8%D0%BA%D0%B0" class="mw-redirect" title="Класическа електродинамика">Класическа електродинамика</a></th></tr><tr><td style="padding:0.2em 0 0.4em"><span typeof="mw:File/Frameless"><a href="/wiki/%D0%A4%D0%B0%D0%B9%D0%BB:CoulombsLaw.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/07/CoulombsLaw.svg/190px-CoulombsLaw.svg.png" decoding="async" width="190" height="152" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/07/CoulombsLaw.svg/285px-CoulombsLaw.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/07/CoulombsLaw.svg/380px-CoulombsLaw.svg.png 2x" data-file-width="512" data-file-height="410" /></a></span></td></tr><tr><td class="hlist" style="padding:0 0.1em 0.4em"> <ul><li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%BE" title="Електричество">Електричество</a></li> <li><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B5%D1%82%D0%B8%D0%B7%D1%8A%D0%BC" title="Магнетизъм">Магнетизъм</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%BE_%D0%B2%D0%B7%D0%B0%D0%B8%D0%BC%D0%BE%D0%B4%D0%B5%D0%B9%D1%81%D1%82%D0%B2%D0%B8%D0%B5" title="Електромагнитно взаимодействие">Електромагнетизъм</a></li></ul></td> </tr><tr><td class="hlist" style="padding:0 0.1em 0.4em"> <div class="mw-collapsible mw-collapsed" style="border:none;padding:0"><div style="font-size:105%;background:transparent;text-align:left;font-weight:bold"><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D1%81%D1%82%D0%B0%D1%82%D0%B8%D0%BA%D0%B0" title="Електростатика">Електростатика</a></div><div class="mw-collapsible-content hlist" style="font-size:105%;padding:0.2em 0 0.4em;text-align:center"> <ul><li><a href="/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9A%D1%83%D0%BB%D0%BE%D0%BD" title="Закон на Кулон">Закон на Кулон</a></li> <li><a href="/wiki/%D0%A2%D0%B5%D0%BE%D1%80%D0%B5%D0%BC%D0%B0_%D0%BD%D0%B0_%D0%93%D0%B0%D1%83%D1%81" title="Теорема на Гаус">Теорема на Гаус</a></li> <li><a href="/wiki/%D0%94%D0%B8%D0%BF%D0%BE%D0%BB" title="Дипол">Електрически дипол</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8_%D0%B7%D0%B0%D1%80%D1%8F%D0%B4" title="Електрически заряд">Електрически заряд</a></li> <li><a href="/wiki/%D0%98%D0%BD%D1%82%D0%B5%D0%BD%D0%B7%D0%B8%D1%82%D0%B5%D1%82_%D0%BD%D0%B0_%D0%B5%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D1%82%D0%BE_%D0%BF%D0%BE%D0%BB%D0%B5" title="Интензитет на електрическото поле">Интензитет на електрическото поле</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%BD%D0%BE_%D0%BF%D0%BE%D0%BB%D0%B5" class="mw-redirect" title="Електрично поле">Електрично поле</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D0%BD_%D0%BF%D0%BE%D1%82%D0%B5%D0%BD%D1%86%D0%B8%D0%B0%D0%BB" title="Електричен потенциал">Електричен потенциал</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B5%D1%82" title="Електрет">Електрет</a></li></ul></div></div></td> </tr><tr><td class="hlist" style="padding:0 0.1em 0.4em"> <div class="mw-collapsible mw-collapsed" style="border:none;padding:0"><div style="font-size:105%;background:transparent;text-align:left;font-weight:bold"><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BE%D1%81%D1%82%D0%B0%D1%82%D0%B8%D0%BA%D0%B0" title="Магнитостатика">Магнитостатика</a></div><div class="mw-collapsible-content hlist" style="font-size:105%;padding:0.2em 0 0.4em;text-align:center"> <ul><li><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82" title="Магнит">Магнит</a></li> <li><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%BE_%D0%BF%D0%BE%D0%BB%D0%B5" title="Магнитно поле">Магнитно поле</a></li> <li><a href="/wiki/%D0%94%D0%B8%D0%BF%D0%BE%D0%BB" title="Дипол">Дипол</a></li> <li><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%B5%D0%BD_%D0%BF%D0%BE%D1%82%D0%BE%D0%BA" title="Магнитен поток">Магнитен поток</a></li> <li><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%B0_%D0%B8%D0%BD%D0%B4%D1%83%D0%BA%D1%86%D0%B8%D1%8F" title="Магнитна индукция">Магнитна индукция</a></li> <li><a href="/wiki/%D0%98%D0%BD%D1%82%D0%B5%D0%BD%D0%B7%D0%B8%D1%82%D0%B5%D1%82_%D0%BD%D0%B0_%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%BE%D1%82%D0%BE_%D0%BF%D0%BE%D0%BB%D0%B5" title="Интензитет на магнитното поле">Интензитет на магнитното поле</a></li> <li><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%B0_%D0%BF%D1%80%D0%BE%D0%BD%D0%B8%D1%86%D0%B0%D0%B5%D0%BC%D0%BE%D1%81%D1%82" title="Магнитна проницаемост">Магнитна проницаемост</a></li> <li><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%B0_%D0%B2%D1%8A%D0%B7%D0%BF%D1%80%D0%B8%D0%B5%D0%BC%D1%87%D0%B8%D0%B2%D0%BE%D1%81%D1%82" title="Магнитна възприемчивост">Магнитна възприемчивост</a></li> <li><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%B5%D0%BD_%D0%BC%D0%BE%D0%BC%D0%B5%D0%BD%D1%82" title="Магнитен момент">Магнитен момент</a></li> <li><a href="/wiki/%D0%9D%D0%B0%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%B2%D0%B0%D0%BD%D0%B5" title="Намагнитване">Намагнитване</a></li> <li><a href="/wiki/%D0%A4%D0%B5%D1%80%D0%BE%D0%BC%D0%B0%D0%B3%D0%BD%D0%B5%D1%82%D0%B8%D0%B7%D1%8A%D0%BC" title="Феромагнетизъм">Феромагнетизъм</a></li> <li><a href="/wiki/%D0%94%D0%B8%D0%B0%D0%BC%D0%B0%D0%B3%D0%BD%D0%B5%D1%82%D0%B8%D0%B7%D1%8A%D0%BC" title="Диамагнетизъм">Диамагнетизъм</a></li> <li><a href="/wiki/%D0%9F%D0%B0%D1%80%D0%B0%D0%BC%D0%B0%D0%B3%D0%BD%D0%B5%D1%82%D0%B8%D0%B7%D1%8A%D0%BC" title="Парамагнетизъм">Парамагнетизъм</a></li> <li><a href="/wiki/%D0%A1%D1%83%D0%BF%D0%B5%D1%80%D0%BF%D0%B0%D1%80%D0%B0%D0%BC%D0%B0%D0%B3%D0%BD%D0%B5%D1%82%D0%B8%D0%B7%D1%8A%D0%BC" title="Суперпарамагнетизъм">Суперпарамагнетизъм</a></li> <li><a href="/wiki/%D0%90%D0%BD%D1%82%D0%B8%D1%84%D0%B5%D1%80%D0%BE%D0%BC%D0%B0%D0%B3%D0%BD%D0%B5%D1%82%D0%B8%D0%B7%D1%8A%D0%BC" title="Антиферомагнетизъм">Антиферомагнетизъм</a></li> <li><a href="/wiki/%D0%A4%D0%B5%D1%80%D0%B8%D0%BC%D0%B0%D0%B3%D0%BD%D0%B5%D1%82%D0%B8%D0%B7%D1%8A%D0%BC" title="Феримагнетизъм">Феримагнетизъм</a></li> <li><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%B0_%D0%BB%D0%B5%D0%B2%D0%B8%D1%82%D0%B0%D1%86%D0%B8%D1%8F" title="Магнитна левитация">Магнитна левитация</a></li> <li><a href="/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%91%D0%B8%D0%BE-%D0%A1%D0%B0%D0%B2%D0%B0%D1%80" title="Закон на Био-Савар">Закон на Био-Савар</a></li> <li><a href="/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%90%D0%BC%D0%BF%D0%B5%D1%80" title="Закон на Ампер">Закон на Ампер</a></li></ul></div></div></td> </tr><tr><td class="hlist" style="padding:0 0.1em 0.4em"> <div class="mw-collapsible mw-collapsed" style="border:none;padding:0"><div style="font-size:105%;background:transparent;text-align:left;font-weight:bold"><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%B4%D0%B8%D0%BD%D0%B0%D0%BC%D0%B8%D0%BA%D0%B0" title="Електродинамика">Електродинамика</a></div><div class="mw-collapsible-content hlist" style="font-size:105%;padding:0.2em 0 0.4em;text-align:center"> <ul><li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%BE_%D0%BF%D0%BE%D0%BB%D0%B5" title="Електромагнитно поле">Електромагнитно поле</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%B0_%D0%B8%D0%BD%D0%B4%D1%83%D0%BA%D1%86%D0%B8%D1%8F" title="Електромагнитна индукция">Електромагнитна индукция</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%BE_%D0%B8%D0%B7%D0%BB%D1%8A%D1%87%D0%B2%D0%B0%D0%BD%D0%B5" title="Електромагнитно излъчване">Електромагнитно излъчване</a></li> <li><a href="/wiki/%D0%94%D0%B8%D0%BF%D0%BE%D0%BB" title="Дипол">Дипол</a></li> <li><a href="/wiki/%D0%A1%D0%B8%D0%BB%D0%B0_%D0%BD%D0%B0_%D0%9B%D0%BE%D1%80%D0%B5%D0%BD%D1%86" title="Сила на Лоренц">Сила на Лоренц</a></li> <li><a href="/wiki/%D0%A3%D1%80%D0%B0%D0%B2%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F_%D0%BD%D0%B0_%D0%9C%D0%B0%D0%BA%D1%81%D1%83%D0%B5%D0%BB" title="Уравнения на Максуел">Уравнения на Максуел</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%B5%D0%BD_4-%D0%BF%D0%BE%D1%82%D0%B5%D0%BD%D1%86%D0%B8%D0%B0%D0%BB" title="Електромагнитен 4-потенциал">Електромагнитен 4-потенциал</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D0%BD_%D0%BF%D0%BE%D1%82%D0%B5%D0%BD%D1%86%D0%B8%D0%B0%D0%BB" title="Електричен потенциал">Електричен потенциал</a></li> <li><a href="/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%B5%D0%BD_%D0%B2%D0%B5%D0%BA%D1%82%D0%BE%D1%80%D0%B5%D0%BD_%D0%BF%D0%BE%D1%82%D0%B5%D0%BD%D1%86%D0%B8%D0%B0%D0%BB" title="Магнитен векторен потенциал">Магнитен векторен потенциал</a></li> <li><a href="/wiki/%D0%92%D1%8A%D0%BB%D0%BD%D0%BE%D0%B2%D0%BE_%D1%83%D1%80%D0%B0%D0%B2%D0%BD%D0%B5%D0%BD%D0%B8%D0%B5" title="Вълново уравнение">Вълново уравнение</a></li> <li><a href="/wiki/%D0%97%D0%B0%D0%BA%D1%8A%D1%81%D0%BD%D1%8F%D0%B2%D0%B0%D1%89_%D0%BF%D0%BE%D1%82%D0%B5%D0%BD%D1%86%D0%B8%D0%B0%D0%BB" title="Закъсняващ потенциал">Закъсняващ потенциал</a></li> <li><a href="/wiki/%D0%9E%D0%BF%D0%B5%D1%80%D0%B0%D1%82%D0%BE%D1%80_%D0%BD%D0%B0_%D0%94%27%D0%90%D0%BB%D0%B0%D0%BC%D0%B1%D0%B5%D1%80" title="Оператор на Д'Аламбер">Оператор на Д'Аламбер</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8_%D0%B4%D0%B8%D0%BF%D0%BE%D0%BB%D0%B5%D0%BD_%D0%BC%D0%BE%D0%BC%D0%B5%D0%BD%D1%82" title="Електрически диполен момент">Електрически диполен момент</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82" title="Електромагнит">Електромагнит</a></li> <li><a href="/wiki/%D0%95%D1%84%D0%B5%D0%BA%D1%82_%D0%BD%D0%B0_%D0%9C%D0%B0%D0%B9%D1%81%D0%BD%D0%B5%D1%80" title="Ефект на Майснер">Ефект на Майснер</a></li></ul></div></div></td> </tr><tr><td class="hlist" style="padding:0 0.1em 0.4em"> <div class="mw-collapsible mw-collapsed" style="border:none;padding:0"><div style="font-size:105%;background:transparent;text-align:left;font-weight:bold"><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0_%D0%B2%D0%B5%D1%80%D0%B8%D0%B3%D0%B0" title="Електрическа верига">Електрическа верига</a></div><div class="mw-collapsible-content hlist" style="font-size:105%;padding:0.2em 0 0.4em;text-align:center"> <ul><li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8_%D1%82%D0%BE%D0%BA" title="Електрически ток">Електрически ток</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE_%D0%BD%D0%B0%D0%BF%D1%80%D0%B5%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5" title="Електрическо напрежение">Електрическо напрежение</a></li> <li><a href="/wiki/%D0%92%D0%BE%D0%BB%D1%82-%D0%B0%D0%BC%D0%BF%D0%B5%D1%80%D0%BD%D0%B0_%D1%85%D0%B0%D1%80%D0%B0%D0%BA%D1%82%D0%B5%D1%80%D0%B8%D1%81%D1%82%D0%B8%D0%BA%D0%B0" title="Волт-амперна характеристика">Волт-амперна характеристика</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE_%D1%81%D1%8A%D0%BF%D1%80%D0%BE%D1%82%D0%B8%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5" title="Електрическо съпротивление">Електрическо съпротивление</a></li> <li><a href="/wiki/%D0%98%D0%BD%D0%B4%D1%83%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%BE%D1%81%D1%82" title="Индуктивност">Индуктивност</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8_%D0%BA%D0%B0%D0%BF%D0%B0%D1%86%D0%B8%D1%82%D0%B5%D1%82" title="Електрически капацитет">Електрически капацитет</a></li> <li><a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0_%D0%BF%D1%80%D0%BE%D0%B2%D0%BE%D0%B4%D0%B8%D0%BC%D0%BE%D1%81%D1%82" title="Електрическа проводимост">Електрическа проводимост</a></li> <li><a href="/wiki/%D0%98%D0%BC%D0%BF%D0%B5%D0%B4%D0%B0%D0%BD%D1%81" title="Импеданс">Електрически импеданс</a></li> <li><a class="mw-selflink selflink">Закон на Ом</a></li> <li><a href="/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD%D0%B8_%D0%BD%D0%B0_%D0%9A%D0%B8%D1%80%D1%85%D0%BE%D1%84" title="Закони на Кирхоф">Закони на Кирхоф</a></li> <li><a href="/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%94%D0%B6%D0%B0%D1%83%D0%BB-%D0%9B%D0%B5%D0%BD%D1%86" class="mw-redirect" title="Закон на Джаул-Ленц">Закон на Джаул-Ленц</a></li></ul></div></div></td> </tr><tr><td class="hlist" style="padding:0 0.1em 0.4em"> <div class="mw-collapsible mw-collapsed" style="border:none;padding:0"><div style="font-size:105%;background:transparent;text-align:left;font-weight:bold">Известни учени</div><div class="mw-collapsible-content hlist" style="font-size:105%;padding:0.2em 0 0.4em;text-align:center"> <ul><li><a href="/wiki/%D0%A5%D0%B5%D0%BD%D1%80%D0%B8_%D0%9A%D0%B0%D0%B2%D0%B5%D0%BD%D0%B4%D0%B8%D1%88" title="Хенри Кавендиш">Хенри Кавендиш</a></li> <li><a href="/wiki/%D0%9C%D0%B0%D0%B9%D0%BA%D1%8A%D0%BB_%D0%A4%D0%B0%D1%80%D0%B0%D0%B4%D0%B5%D0%B9" title="Майкъл Фарадей">Майкъл Фарадей</a></li> <li><a href="/wiki/%D0%90%D0%BD%D0%B4%D1%80%D0%B5-%D0%9C%D0%B0%D1%80%D0%B8_%D0%90%D0%BC%D0%BF%D0%B5%D1%80" title="Андре-Мари Ампер">Андре-Мари Ампер</a></li> <li><a href="/wiki/%D0%93%D1%83%D1%81%D1%82%D0%B0%D0%B2_%D0%9A%D0%B8%D1%80%D1%85%D0%BE%D1%84" title="Густав Кирхоф">Густав Кирхоф</a></li> <li><a href="/wiki/%D0%94%D0%B6%D0%B5%D0%B9%D0%BC%D1%81_%D0%9A%D0%BB%D0%B0%D1%80%D0%BA_%D0%9C%D0%B0%D0%BA%D1%81%D1%83%D0%B5%D0%BB" title="Джеймс Кларк Максуел">Джеймс Кларк Максуел</a></li> <li><a href="/wiki/%D0%A5%D0%B0%D0%B9%D0%BD%D1%80%D0%B8%D1%85_%D0%A5%D0%B5%D1%80%D1%86" title="Хайнрих Херц">Хайнрих Херц</a></li> <li><a href="/wiki/%D0%90%D0%BB%D0%B1%D0%B5%D1%80%D1%82_%D0%90%D0%B1%D1%80%D0%B0%D1%85%D0%B0%D0%BC_%D0%9C%D0%B0%D0%B9%D0%BA%D0%B5%D0%BB%D1%81%D1%8A%D0%BD" class="mw-redirect" title="Алберт Абрахам Майкелсън">Алберт Абрахам Майкелсън</a></li> <li><a href="/wiki/%D0%A0%D0%BE%D0%B1%D1%8A%D1%80%D1%82_%D0%9C%D0%B8%D0%BB%D0%B8%D0%BA%D0%B0%D0%BD" title="Робърт Миликан">Робърт Миликан</a></li> <li><a href="/wiki/%D0%93%D0%B5%D0%BE%D1%80%D0%B3_%D0%9E%D0%BC" title="Георг Ом">Георг Ом</a></li> <li><a href="/wiki/%D0%9B%D1%83%D0%B8_%D0%9D%D0%B5%D0%B5%D0%BB" title="Луи Неел">Луи Неел</a></li></ul></div></div></td> </tr><tr><td style="text-align:right;font-size:115%;padding-top: 0.6em;"><div class="plainlinks hlist navbar mini"><ul><li class="nv-view"><a href="/wiki/%D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD:%D0%9A%D0%BB%D0%B0%D1%81%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0_%D0%B5%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%B4%D0%B8%D0%BD%D0%B0%D0%BC%D0%B8%D0%BA%D0%B0" title="Шаблон:Класическа електродинамика"><abbr title="Преглед на шаблона">п</abbr></a></li><li class="nv-talk"><a class="external text" href="https://bg.wikipedia.org/w/index.php?title=%D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD_%D0%B1%D0%B5%D1%81%D0%B5%D0%B4%D0%B0%3A%D0%9A%D0%BB%D0%B0%D1%81%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0_%D0%B5%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%B4%D0%B8%D0%BD%D0%B0%D0%BC%D0%B8%D0%BA%D0%B0&action=edit&redlink=1"><abbr title="Беседа на шаблона (страницата не съществува)" style="color:#ba0000">б</abbr></a></li><li class="nv-edit"><a class="external text" href="https://bg.wikipedia.org/w/index.php?title=%D0%A8%D0%B0%D0%B1%D0%BB%D0%BE%D0%BD:%D0%9A%D0%BB%D0%B0%D1%81%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0_%D0%B5%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%B4%D0%B8%D0%BD%D0%B0%D0%BC%D0%B8%D0%BA%D0%B0&action=edit"><abbr title="Редактиране на шаблона">р</abbr></a></li></ul></div></td></tr></tbody></table> <p><b>Законът на Ом</b> е физичен закон, определящ зависимостта между <a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE_%D0%BD%D0%B0%D0%BF%D1%80%D0%B5%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5" title="Електрическо напрежение">напрежението</a>, <a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8_%D1%82%D0%BE%D0%BA" title="Електрически ток">тока</a> и <a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE_%D1%81%D1%8A%D0%BF%D1%80%D0%BE%D1%82%D0%B8%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5" title="Електрическо съпротивление">съпротивлението</a> на проводника в <a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B0_%D0%B2%D0%B5%D1%80%D0%B8%D0%B3%D0%B0" title="Електрическа верига">електрическа верига</a>. Наречен е в чест на неговия откривател <a href="/wiki/%D0%93%D0%B5%D0%BE%D1%80%D0%B3_%D0%9E%D0%BC" title="Георг Ом">Георг Ом</a>. Същността на закона е проста: създаваният от напрежението ток е обратно пропорционален на съпротивлението, което той трябва да преодолява, и е право пропорционален на пораждащото го напрежение. </p><p>Трябва също да се има предвид, че законът на Ом е фундаментален и може да се прилага към всяка физична система, в която действат някакви потоци енергия, преодоляващи съпротивление. Законът може да се прилага за изчисление на хидравлични, пневматични, магнитни, електрически, светлинни, топлинни потоци и т.н. (същото се отнася и за <a href="/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD%D0%B8_%D0%BD%D0%B0_%D0%9A%D0%B8%D1%80%D1%85%D0%BE%D1%84" title="Закони на Кирхоф">законите на Кирхоф</a>), обаче такова приложение на тези закони става крайно рядко, само в рамките на тясно специализирани курсове. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="История_на_закона_на_Ом"><span id=".D0.98.D1.81.D1.82.D0.BE.D1.80.D0.B8.D1.8F_.D0.BD.D0.B0_.D0.B7.D0.B0.D0.BA.D0.BE.D0.BD.D0.B0_.D0.BD.D0.B0_.D0.9E.D0.BC"></span>История на закона на Ом</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&veaction=edit&section=1" title="Редактиране на раздел: История на закона на Ом" class="mw-editsection-visualeditor"><span>редактиране</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&action=edit&section=1" title="Edit section's source code: История на закона на Ом"><span>редактиране на кода</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><a href="/wiki/%D0%93%D0%B5%D0%BE%D1%80%D0%B3_%D0%9E%D0%BC" title="Георг Ом">Георг Зимон Ом</a>, провеждайки експерименти с различни проводници, установил, че силата на тока <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle I}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>I</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle I}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/535ea7fc4134a31cbe2251d9d3511374bc41be9f" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.172ex; height:2.176ex;" alt="{\displaystyle I}"></span> в даден проводник е пропорционална на напрежението <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle U}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>U</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle U}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/458a728f53b9a0274f059cd695e067c430956025" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.783ex; height:2.176ex;" alt="{\displaystyle U}"></span>, приложено към краищата му: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle I=G\cdot U}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>I</mi> <mo>=</mo> <mi>G</mi> <mo>⋅</mo> <mi>U</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle I=G\cdot U}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/e75a8f8e353a290e0b2517a2e003cf19b09e032e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:9.559ex; height:2.176ex;" alt="{\displaystyle I=G\cdot U}"></span> </p><p>Коефициентът на пропорционалност <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle G}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>G</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle G}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f5f3c8921a3b352de45446a6789b104458c9f90b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.827ex; height:2.176ex;" alt="{\displaystyle G}"></span> се нарича <a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BF%D1%80%D0%BE%D0%B2%D0%BE%D0%B4%D0%B8%D0%BC%D0%BE%D1%81%D1%82" class="mw-redirect" title="Електропроводимост">електропроводимост</a>, а величината <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle R=1/G}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>R</mi> <mo>=</mo> <mn>1</mn> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <mi>G</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle R=1/G}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/53ac96b2fbd95f288fa7318ab3a8d53f16df5281" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:9.014ex; height:2.843ex;" alt="{\displaystyle R=1/G}"></span> е прието да се нарича <a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE_%D1%81%D1%8A%D0%BF%D1%80%D0%BE%D1%82%D0%B8%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5" title="Електрическо съпротивление">електрическо съпротивление</a> на проводника. </p> <div class="mw-heading mw-heading2"><h2 id="Закон_на_Ом_в_интегрална_форма"><span id=".D0.97.D0.B0.D0.BA.D0.BE.D0.BD_.D0.BD.D0.B0_.D0.9E.D0.BC_.D0.B2_.D0.B8.D0.BD.D1.82.D0.B5.D0.B3.D1.80.D0.B0.D0.BB.D0.BD.D0.B0_.D1.84.D0.BE.D1.80.D0.BC.D0.B0"></span>Закон на Ом в интегрална форма</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&veaction=edit&section=2" title="Редактиране на раздел: Закон на Ом в интегрална форма" class="mw-editsection-visualeditor"><span>редактиране</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&action=edit&section=2" title="Edit section's source code: Закон на Ом в интегрална форма"><span>редактиране на кода</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Законът на Ом за част от електрическата верига има вида: </p> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle I={\frac {U}{R}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <mi>I</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>U</mi> <mi>R</mi> </mfrac> </mrow> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle I={\frac {U}{R}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ff7d5b94fe91acd76bb57dccd250f1dc96982a36" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.338ex; width:6.367ex; height:3.843ex;" alt="{\displaystyle \textstyle I={\frac {U}{R}}}"></span>, или</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle U=R\cdot I}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <mi>U</mi> <mo>=</mo> <mi>R</mi> <mo>⋅</mo> <mi>I</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle U=R\cdot I}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f07b4ea279428a5860dc7390037693be9dbca62a" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:9.496ex; height:2.176ex;" alt="{\displaystyle \textstyle U=R\cdot I}"></span>, или</li></ul> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle R={\frac {U}{I}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <mi>R</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>U</mi> <mi>I</mi> </mfrac> </mrow> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle R={\frac {U}{I}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/7383e7ee769e4e866021ce5d044ee084cd4ec074" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.171ex; width:6.959ex; height:3.676ex;" alt="{\displaystyle \textstyle R={\frac {U}{I}}}"></span>,</li></ul> <p>където: </p> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle U}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>U</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle U}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f07de52629c48441fa9544cd9ec635d64af67cd3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.26ex; height:1.676ex;" alt="{\displaystyle \scriptstyle U}"></span> е напрежението или разликата между потенциалите,</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle I}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>I</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle I}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/7784992569d3b9f73a37d4cff1f18443d0583397" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:0.829ex; height:1.676ex;" alt="{\displaystyle \scriptstyle I}"></span> е силата на тока,</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle R}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>R</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle R}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b814811ff06a8eb5ed4110cef7ea3013d29658ab" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.247ex; height:1.676ex;" alt="{\displaystyle \scriptstyle R}"></span> е съпротивлението.</li></ul> <p>Законът на Ом се прилага също и към цялата верига, но в малко видоизменена форма: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle I={E \over {R+r}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>I</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>E</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>R</mi> <mo>+</mo> <mi>r</mi> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle I={E \over {R+r}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d368055aa04a775cdcb468928099f89bc2fc245e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:10.759ex; height:5.343ex;" alt="{\displaystyle I={E \over {R+r}}}"></span>,</dd></dl> <p>където: </p> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle E}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>E</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle E}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c0e606dbe7f43f6b57360163aa1a7e1d0836234d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.256ex; height:1.676ex;" alt="{\displaystyle \scriptstyle E}"></span> е <a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%B4%D0%B2%D0%B8%D0%B6%D0%B5%D1%89%D0%BE_%D0%BD%D0%B0%D0%BF%D1%80%D0%B5%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5" class="mw-redirect" title="Електродвижещо напрежение">електродвижещото напрежение</a> във веригата,</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle I}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>I</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle I}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/7784992569d3b9f73a37d4cff1f18443d0583397" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:0.829ex; height:1.676ex;" alt="{\displaystyle \scriptstyle I}"></span> е силата на тока във веригата,</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle R}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>R</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle R}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b814811ff06a8eb5ed4110cef7ea3013d29658ab" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.247ex; height:1.676ex;" alt="{\displaystyle \scriptstyle R}"></span> е <a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%BD%D0%BE_%D1%81%D1%8A%D0%BF%D1%80%D0%BE%D1%82%D0%B8%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5" class="mw-redirect" title="Електрично съпротивление">съпротивлението</a> на всички елементи от веригата,</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle r}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>r</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle r}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c263138a3e4ce7d72deef6ef08c090ace56c660f" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:0.742ex; height:1.343ex;" alt="{\displaystyle \scriptstyle r}"></span> е <a href="/w/index.php?title=%D0%92%D1%8A%D1%82%D1%80%D0%B5%D1%88%D0%BD%D0%BE_%D1%81%D1%8A%D0%BF%D1%80%D0%BE%D1%82%D0%B8%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5&action=edit&redlink=1" class="new" title="Вътрешно съпротивление (страницата не съществува)">вътрешно съпротивление</a> на източника на захранване.</li></ul> <p>За по-лесно запомняне (в училище) законът на Ом се изобразява и като равностранен триъгълник с пресечна хоризонтална линия, под която има вертикална линия в средата. В горния малък триъгълник е <i>U</i>, под него са <i>I</i> и <i>R</i>. Лесно се помни и изглежда ето така: </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle U=I\cdot R}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>U</mi> <mo>=</mo> <mi>I</mi> <mo>⋅</mo> <mi>R</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle U=I\cdot R}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2a2cf2b5fdafe97e8c6531462c5502b94c596974" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:5.072ex; height:1.676ex;" alt="{\displaystyle \scriptstyle U=I\cdot R}"></span>, <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle I={\frac {U}{R}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>I</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>U</mi> <mi>R</mi> </mfrac> </mrow> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle I={\frac {U}{R}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8d8bcd63c8a3f5c46fec2d6852f0c352f2c56d12" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.171ex; width:3.967ex; height:3.176ex;" alt="{\displaystyle \scriptstyle I={\frac {U}{R}}}"></span>, <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle R={\frac {U}{I}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>R</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>U</mi> <mi>I</mi> </mfrac> </mrow> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle R={\frac {U}{I}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/66d71045278c3a6602481d0eba53e885dcc57e1e" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.171ex; width:4.385ex; height:3.176ex;" alt="{\displaystyle \scriptstyle R={\frac {U}{I}}}"></span>. </p> <pre> /\ / \ / U \ /——————\ / I | R \ —————————— </pre> <div class="mw-heading mw-heading2"><h2 id="Закон_на_Ом_в_диференциална_форма"><span id=".D0.97.D0.B0.D0.BA.D0.BE.D0.BD_.D0.BD.D0.B0_.D0.9E.D0.BC_.D0.B2_.D0.B4.D0.B8.D1.84.D0.B5.D1.80.D0.B5.D0.BD.D1.86.D0.B8.D0.B0.D0.BB.D0.BD.D0.B0_.D1.84.D0.BE.D1.80.D0.BC.D0.B0"></span>Закон на Ом в диференциална форма</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&veaction=edit&section=3" title="Редактиране на раздел: Закон на Ом в диференциална форма" class="mw-editsection-visualeditor"><span>редактиране</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&action=edit&section=3" title="Edit section's source code: Закон на Ом в диференциална форма"><span>редактиране на кода</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Съпротивлението <i>R</i> зависи както от материала на проводника, по който тече токът, така и от геометричните размери на проводника. </p><p>Полезно е да се запише законът на Ом в диференциална форма, при която зависимостта от геометричните размери изчезва и тогава законът на Ом описва само електропроводните свойства на материала. За <a href="/wiki/%D0%98%D0%B7%D0%BE%D1%82%D1%80%D0%BE%D0%BF%D0%B8%D1%8F" title="Изотропия">изотропни</a> материали: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \mathbf {j} =\sigma \cdot \mathbf {E} }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">j</mi> </mrow> <mo>=</mo> <mi>σ</mi> <mo>⋅</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">E</mi> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {j} =\sigma \cdot \mathbf {E} }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/46528cf7c79d30460b1814cc8d20d4b8b335c797" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; margin-left: -0.164ex; width:8.844ex; height:2.509ex;" alt="{\displaystyle \mathbf {j} =\sigma \cdot \mathbf {E} }"></span>,</dd></dl> <p>където: </p> <ul><li><b>j</b> е векторът на <a href="/wiki/%D0%9F%D0%BB%D1%8A%D1%82%D0%BD%D0%BE%D1%81%D1%82_%D0%BD%D0%B0_%D1%82%D0%BE%D0%BA%D0%B0" title="Плътност на тока">плътността на тока</a>,</li> <li><i>σ</i> е <a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D1%84%D0%B8%D1%87%D0%BD%D0%B0_%D0%B5%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BF%D1%80%D0%BE%D0%B2%D0%BE%D0%B4%D0%B8%D0%BC%D0%BE%D1%81%D1%82" title="Специфична електропроводимост">специфичната електропроводимост</a>,</li> <li><b>E</b> е векторът на <a href="/wiki/%D0%98%D0%BD%D1%82%D0%B5%D0%BD%D0%B7%D0%B8%D1%82%D0%B5%D1%82_%D0%BD%D0%B0_%D0%B5%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D1%82%D0%BE_%D0%BF%D0%BE%D0%BB%D0%B5" title="Интензитет на електрическото поле">интензитета на електрическото поле</a>.</li></ul> <p>Всички величини, влизащи в това уравнение, са функции на <a href="/wiki/%D0%9A%D0%BE%D0%BE%D1%80%D0%B4%D0%B8%D0%BD%D0%B0%D1%82%D0%B0" class="mw-redirect" title="Координата">координатите</a> и в общия случай на времето. Ако материалът е <a href="/wiki/%D0%90%D0%BD%D0%B8%D0%B7%D0%BE%D1%82%D1%80%D0%BE%D0%BF%D0%B8%D1%8F" title="Анизотропия">анизотропен</a>, то посоките на векторите на плътността на тока и на интензитета могат да не съвпадат. В този случай относителната проводимост е <a href="/wiki/%D0%A2%D0%B5%D0%BD%D0%B7%D0%BE%D1%80" title="Тензор">тензор</a> от ранг (1, 1). </p><p>Разделът от <a href="/wiki/%D0%A4%D0%B8%D0%B7%D0%B8%D0%BA%D0%B0" title="Физика">физиката</a>, изучаващ протичането на електрически ток в различни среди, се нарича <a href="/w/index.php?title=%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%B4%D0%B8%D0%BD%D0%B0%D0%BC%D0%B8%D0%BA%D0%B0_%D0%BD%D0%B0_%D0%BD%D0%B5%D0%BF%D1%80%D0%B5%D0%BA%D1%8A%D1%81%D0%BD%D0%B0%D1%82%D0%B8%D1%82%D0%B5_%D1%81%D1%80%D0%B5%D0%B4%D0%B8&action=edit&redlink=1" class="new" title="Електродинамика на непрекъснатите среди (страницата не съществува)">електродинамика на непрекъснатите среди</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Закон_на_Ом_за_променлив_ток"><span id=".D0.97.D0.B0.D0.BA.D0.BE.D0.BD_.D0.BD.D0.B0_.D0.9E.D0.BC_.D0.B7.D0.B0_.D0.BF.D1.80.D0.BE.D0.BC.D0.B5.D0.BD.D0.BB.D0.B8.D0.B2_.D1.82.D0.BE.D0.BA"></span>Закон на Ом за променлив ток</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&veaction=edit&section=4" title="Редактиране на раздел: Закон на Ом за променлив ток" class="mw-editsection-visualeditor"><span>редактиране</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&action=edit&section=4" title="Edit section's source code: Закон на Ом за променлив ток"><span>редактиране на кода</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Ако веригата съдържа не само активни, но и реактивни елементи (<a href="/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D0%BD_%D0%BA%D0%B0%D0%BF%D0%B0%D1%86%D0%B8%D1%82%D0%B5%D1%82" class="mw-redirect" title="Електричен капацитет">капацитети</a>, <a href="/wiki/%D0%98%D0%BD%D0%B4%D1%83%D0%BA%D1%82%D0%B8%D0%B2%D0%BD%D0%BE%D1%81%D1%82" title="Индуктивност">индуктивности</a>), а токът е синусоидален с кръгова (ъглова) <a href="/wiki/%D0%A7%D0%B5%D1%81%D1%82%D0%BE%D1%82%D0%B0" title="Честота">честота</a> ω, то законът на Ом се обобщава, а участващите в него величини стават комплексни: </p> <dl><dd><dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\dot {U}}=Z\cdot {\dot {I}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>U</mi> <mo>˙</mo> </mover> </mrow> </mrow> <mo>=</mo> <mi>Z</mi> <mo>⋅</mo> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>I</mi> <mo>˙</mo> </mover> </mrow> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\dot {U}}=Z\cdot {\dot {I}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6027c2312717467cc6495370caa57823c8d973f1" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:9.762ex; height:2.676ex;" alt="{\displaystyle {\dot {U}}=Z\cdot {\dot {I}}}"></span>,</dd></dl></dd></dl> <p>където: </p> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle {\dot {U}}=U\cdot e^{j\psi _{u}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>U</mi> <mo>˙</mo> </mover> </mrow> </mrow> <mo>=</mo> <mi>U</mi> <mo>⋅</mo> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>j</mi> <msub> <mi>ψ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>u</mi> </mrow> </msub> </mrow> </msup> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle {\dot {U}}=U\cdot e^{j\psi _{u}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2564493f60a2d9ee3d73a824d5675d1b241513fe" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:12.333ex; height:2.676ex;" alt="{\displaystyle \textstyle {\dot {U}}=U\cdot e^{j\psi _{u}}}"></span></li></ul> <dl><dd>е комплексната ефективна стойност на напрежението; <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle \psi _{u}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <msub> <mi>ψ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>u</mi> </mrow> </msub> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle \psi _{u}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/cb9e7df3dcdb17fcdd682e6192b5210e7781c41d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.686ex; height:2.509ex;" alt="{\displaystyle \textstyle \psi _{u}}"></span> е началната фаза на напрежението,</dd></dl> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle {\dot {I}}=I\cdot e^{j\psi _{i}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mrow class="MJX-TeXAtom-ORD"> <mover> <mi>I</mi> <mo>˙</mo> </mover> </mrow> </mrow> <mo>=</mo> <mi>I</mi> <mo>⋅</mo> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>j</mi> <msub> <mi>ψ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>i</mi> </mrow> </msub> </mrow> </msup> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle {\dot {I}}=I\cdot e^{j\psi _{i}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/903fe26c2cb589ab52c929d483ab57eb8385abad" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:11.159ex; height:2.676ex;" alt="{\displaystyle \textstyle {\dot {I}}=I\cdot e^{j\psi _{i}}}"></span></li></ul> <dl><dd>е комплексната ефективна стойност на тока; <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle \psi _{i}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <msub> <mi>ψ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>i</mi> </mrow> </msub> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle \psi _{i}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b04d84b6c95d3bb933f3707998557f8e253dadc7" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:2.313ex; height:2.509ex;" alt="{\displaystyle \textstyle \psi _{i}}"></span> е началната фаза на тока,</dd></dl> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle Z=z\cdot e^{j\varphi }}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <mi>Z</mi> <mo>=</mo> <mi>z</mi> <mo>⋅</mo> <msup> <mi>e</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>j</mi> <mi>φ</mi> </mrow> </msup> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle Z=z\cdot e^{j\varphi }}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8b0fefb1fcafe851d059fc21b0872602659ad8b9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:10.614ex; height:2.509ex;" alt="{\displaystyle \textstyle Z=z\cdot e^{j\varphi }}"></span></li></ul> <dl><dd>е комплексното пълно съпротивление (комплексният <a href="/wiki/%D0%98%D0%BC%D0%BF%D0%B5%D0%B4%D0%B0%D0%BD%D1%81" title="Импеданс">импеданс</a>),</dd></dl> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle z={\sqrt {R^{2}+X^{2}}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <mi>z</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <msqrt> <msup> <mi>R</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mo>+</mo> <msup> <mi>X</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </msqrt> </mrow> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle z={\sqrt {R^{2}+X^{2}}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/61fd229d771c426447e5b08380e52fa7dc7fe191" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:15.22ex; height:3.509ex;" alt="{\displaystyle \textstyle z={\sqrt {R^{2}+X^{2}}}}"></span></li></ul> <dl><dd>е пълното съпротивление (импеданс),</dd></dl> <ul><li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle X=\omega L-{\frac {1}{\omega C}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <mi>X</mi> <mo>=</mo> <mi>ω</mi> <mi>L</mi> <mo>−</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>1</mn> <mrow> <mi>ω</mi> <mi>C</mi> </mrow> </mfrac> </mrow> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle X=\omega L-{\frac {1}{\omega C}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3bc228901aa6e17f8be28b98e7d8474ef028ec9d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.338ex; width:14.055ex; height:3.676ex;" alt="{\displaystyle \textstyle X=\omega L-{\frac {1}{\omega C}}}"></span> е реактивното съпротивление; <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle X_{L}=\omega L}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <msub> <mi>X</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>L</mi> </mrow> </msub> <mo>=</mo> <mi>ω</mi> <mi>L</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle X_{L}=\omega L}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/fc8012e6fedd6b2c935b7ee0ac5cfc0f0caf0672" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; width:9.403ex; height:2.509ex;" alt="{\displaystyle \textstyle X_{L}=\omega L}"></span> е индуктивното съпротивление; <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle X_{C}={\frac {1}{\omega C}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <msub> <mi>X</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>C</mi> </mrow> </msub> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mn>1</mn> <mrow> <mi>ω</mi> <mi>C</mi> </mrow> </mfrac> </mrow> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle X_{C}={\frac {1}{\omega C}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/0f2dfccc0a4a9f66ac8864366ae148ff78256826" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.338ex; width:9.611ex; height:3.676ex;" alt="{\displaystyle \textstyle X_{C}={\frac {1}{\omega C}}}"></span> е капацитивното съпротивление,</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle R}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <mi>R</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle R}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/41b44af7e47b69695c83d364488950da2e9cda5b" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.764ex; height:2.176ex;" alt="{\displaystyle \textstyle R}"></span> е активното съпротивление, независещо от честотата,</li> <li><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \textstyle \varphi =\arctan {\frac {X}{R}}=\psi _{u}-\psi _{i}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="0"> <mi>φ</mi> <mo>=</mo> <mi>arctan</mi> <mo>⁡</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>X</mi> <mi>R</mi> </mfrac> </mrow> <mo>=</mo> <msub> <mi>ψ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>u</mi> </mrow> </msub> <mo>−</mo> <msub> <mi>ψ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>i</mi> </mrow> </msub> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \textstyle \varphi =\arctan {\frac {X}{R}}=\psi _{u}-\psi _{i}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/6fa32ea6d6559bdaf459bfe5735f33b48b7962d4" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.338ex; width:24.645ex; height:3.676ex;" alt="{\displaystyle \textstyle \varphi =\arctan {\frac {X}{R}}=\psi _{u}-\psi _{i}}"></span> е фазовата разлика между напрежението и тока.</li></ul> <p>Ако токът е периодична функция на времето, но не е синусоидален, то той може да представи като сума от синусоидални съставящи (хармонични) с честоти <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle k\omega }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>k</mi> <mi>ω</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle k\omega }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/cd75150ba7ca57e0ac657b6043dac1a10d531335" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.879ex; height:1.676ex;" alt="{\displaystyle \scriptstyle k\omega }"></span>, (<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle k=1\ldots \infty }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>k</mi> <mo>=</mo> <mn>1</mn> <mo>…</mo> <mi mathvariant="normal">∞</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle k=1\ldots \infty }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a51d31eb6097216deced5827fd9143e753c76a80" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:6.526ex; height:1.676ex;" alt="{\displaystyle \scriptstyle k=1\ldots \infty }"></span>) чрез разлагане в <a href="/wiki/%D0%A0%D0%B5%D0%B4_%D0%BD%D0%B0_%D0%A4%D1%83%D1%80%D0%B8%D0%B5" title="Ред на Фурие">ред на Фурие</a>. За линейни вериги може да се счита, че тези съставящи от разлагането на тока в ред на Фурие действат независимо една от друга. </p><p>Трябва да се отбележи също, че законът на Ом във вида, представен по-горе, е в сила за <a href="/w/index.php?title=%D0%9B%D0%B8%D0%BD%D0%B5%D0%B9%D0%BD%D0%B8_%D0%B5%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8_%D0%B2%D0%B5%D1%80%D0%B8%D0%B3%D0%B8&action=edit&redlink=1" class="new" title="Линейни електрически вериги (страницата не съществува)">линейни електрически вериги</a>, т.е. такива вериги, в които параметрите <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle R}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>R</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle R}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b814811ff06a8eb5ed4110cef7ea3013d29658ab" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.247ex; height:1.676ex;" alt="{\displaystyle \scriptstyle R}"></span>, <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle L}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>L</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle L}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b42efe7da0173656febaa66fbe367cfcf5151b72" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.119ex; height:1.676ex;" alt="{\displaystyle \scriptstyle L}"></span> и <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \scriptstyle C}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mstyle displaystyle="false" scriptlevel="1"> <mi>C</mi> </mstyle> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \scriptstyle C}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/fb065b175e96fd6b2519350ac89fc99fa786c882" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.249ex; height:1.676ex;" alt="{\displaystyle \scriptstyle C}"></span> са константни величини, независещи от напрежението, тока и честотата. В практиката това означава, че законът на Ом важи в определени граници на изменение на честотата, напрежението или тока. </p><p>За описване на по-сложни (нелинейни) системи, когато не може да се пренебрегне зависимостта на съпротивлението от силата на тока, е прието да се разглежда тяхната <a href="/wiki/%D0%92%D0%BE%D0%BB%D1%82-%D0%B0%D0%BC%D0%BF%D0%B5%D1%80%D0%BD%D0%B0_%D1%85%D0%B0%D1%80%D0%B0%D0%BA%D1%82%D0%B5%D1%80%D0%B8%D1%81%D1%82%D0%B8%D0%BA%D0%B0" title="Волт-амперна характеристика">волт-амперна характеристика</a>. Отклонения от закона на Ом се наблюдават също и в случаите, когато скоростта на изменение на електрическото поле е толкова голяма, че не може да се пренебрегне инерционността на носителите на заряда. </p> <div class="mw-heading mw-heading2"><h2 id="Източници"><span id=".D0.98.D0.B7.D1.82.D0.BE.D1.87.D0.BD.D0.B8.D1.86.D0.B8"></span>Източници</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&veaction=edit&section=5" title="Редактиране на раздел: Източници" class="mw-editsection-visualeditor"><span>редактиране</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&action=edit&section=5" title="Edit section's source code: Източници"><span>редактиране на кода</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Фархи, С.Л., С.П.Папазов. <i>Теоретична електротехника</i> ч. I, София, 1999, Техника.</li> <li>Simonyi, K. <i>Theoretische Elektrotechnik</i>, Berlin, 1956, Deutscher Verlag der Wissenschaften.</li> <li>Нейман, Л. Р., К. С. Демирчян, <i>Теоретические основы электротехники</i> т. I, т. II, Ленинград, 1981, Энергоиздат.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Вижте_също"><span id=".D0.92.D0.B8.D0.B6.D1.82.D0.B5_.D1.81.D1.8A.D1.89.D0.BE"></span>Вижте също</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&veaction=edit&section=6" title="Редактиране на раздел: Вижте също" class="mw-editsection-visualeditor"><span>редактиране</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=%D0%97%D0%B0%D0%BA%D0%BE%D0%BD_%D0%BD%D0%B0_%D0%9E%D0%BC&action=edit&section=6" title="Edit section's source code: Вижте също"><span>редактиране на кода</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/%D0%97%D0%B0%D0%BA%D0%BE%D0%BD%D0%B8_%D0%BD%D0%B0_%D0%9A%D0%B8%D1%80%D1%85%D0%BE%D1%84" title="Закони на Кирхоф">Закони на Кирхоф</a></li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1&useformat=desktop" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Взето от „<a dir="ltr" href="https://bg.wikipedia.org/w/index.php?title=Закон_на_Ом&oldid=12100567">https://bg.wikipedia.org/w/index.php?title=Закон_на_Ом&oldid=12100567</a>“.</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/%D0%A1%D0%BF%D0%B5%D1%86%D0%B8%D0%B0%D0%BB%D0%BD%D0%B8:%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D0%B8" title="Специални:Категории">Категории</a>: <ul><li><a href="/wiki/%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F:%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D1%82%D0%B2%D0%BE" title="Категория:Електричество">Електричество</a></li><li><a href="/wiki/%D0%9A%D0%B0%D1%82%D0%B5%D0%B3%D0%BE%D1%80%D0%B8%D1%8F:%D0%A4%D0%B8%D0%B7%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%B8_%D0%B7%D0%B0%D0%BA%D0%BE%D0%BD%D0%B8" title="Категория:Физически закони">Физически закони</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Последната промяна на страницата е извършена на 10 януари 2024 г. в 14:28 ч.</li> <li id="footer-info-copyright">Текстът е достъпен под лиценза <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.bg">Creative Commons Признание-Споделяне на споделеното</a>; може да са приложени допълнителни условия. 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