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<header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Webbplats"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Huvudmeny" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-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-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Huvudmeny</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Huvudmeny</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">dölj</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigering </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Portal:Huvudsida" title="Besök huvudsidan [z]" accesskey="z"><span>Huvudsida</span></a></li><li id="n-Introduktion" class="mw-list-item"><a href="/wiki/Wikipedia:Introduktion"><span>Introduktion</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Deltagarportalen" title="Om projektet, vad du kan göra, var man kan hitta saker"><span>Deltagarportalen</span></a></li><li id="n-Bybrunnen" class="mw-list-item"><a href="/wiki/Wikipedia:Bybrunnen"><span>Bybrunnen</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:Senaste_%C3%A4ndringar" title="Lista över de senaste ändringarna på wikin [r]" accesskey="r"><span>Senaste ändringarna</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:Slumpsida" title="Gå till en slumpmässigt vald sida [x]" accesskey="x"><span>Slumpartikel</span></a></li><li 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class="vector-appearance-landmark" aria-label="Utseende"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Ändra utseendet på sidans teckenstorlek, bredd och färg" > <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="Utseende" > <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">Utseende</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_sv.wikipedia.org&uselang=sv" class=""><span>Stöd Wikipedia</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=Special:Skapa_konto&returnto=Permeabilitet" title="Du uppmuntras att skapa ett konto och logga in, men det är inte obligatoriskt" class=""><span>Skapa konto</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=Special:Inloggning&returnto=Permeabilitet" title="Inloggning ger tillgång till fler funktioner för den som vill skriva och redigera artiklar. [o]" accesskey="o" class=""><span>Logga in</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="Fler alternativ" > <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="Personliga verktyg" > <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">Personliga verktyg</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="Användarmeny" > <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_sv.wikipedia.org&uselang=sv"><span>Stöd Wikipedia</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:Skapa_konto&returnto=Permeabilitet" title="Du uppmuntras att skapa ett konto och logga in, men det är inte obligatoriskt"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Skapa konto</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:Inloggning&returnto=Permeabilitet" title="Inloggning ger tillgång till fler funktioner för den som vill skriva och redigera artiklar. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Logga in</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"> Sidor för utloggade redigerare <a href="/wiki/Hj%C3%A4lp:Introduktion" aria-label="Läs mer om redigering"><span>läs mer</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/Special:Mina_bidrag" title="En lista över redigeringar från denna IP-adress [y]" accesskey="y"><span>Bidrag</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:Min_diskussion" title="Diskussion om redigeringar från det här IP-numret [n]" accesskey="n"><span>Diskussion</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="Webbplats"> <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="Innehåll" 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">Innehåll</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">dölj</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">Inledning</div> </a> </li> <li id="toc-Förklaring" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Förklaring"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Förklaring</span> </div> </a> <ul id="toc-Förklaring-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Relativ_permeabilitet_och_susceptibilitet" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Relativ_permeabilitet_och_susceptibilitet"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Relativ permeabilitet och susceptibilitet</span> </div> </a> <ul id="toc-Relativ_permeabilitet_och_susceptibilitet-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Diamagnetism" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Diamagnetism"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Diamagnetism</span> </div> </a> <ul id="toc-Diamagnetism-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Paramagnetism" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Paramagnetism"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Paramagnetism</span> </div> </a> <ul id="toc-Paramagnetism-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Värden_för_några_vanliga_material" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Värden_för_några_vanliga_material"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Värden för några vanliga material</span> </div> </a> <ul id="toc-Värden_för_några_vanliga_material-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Se_även" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Se_även"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Se även</span> </div> </a> <ul id="toc-Se_även-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Referenser" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Referenser"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Referenser</span> </div> </a> <ul id="toc-Referenser-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="Innehåll" 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="Växla innehållsförteckningen" > <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">Växla innehållsförteckningen</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">Permeabilitet</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="Gå till en artikel på ett annat språk. Tillgänglig på 54 språk" > <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-54" 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">54 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%86%D9%81%D8%A7%D8%B0%D9%8A%D8%A9_(%D9%83%D9%87%D8%B1%D8%B7%D9%8A%D8%B3%D9%8A%D8%A9)" title="نفاذية (كهرطيسية) – arabiska" lang="ar" hreflang="ar" data-title="نفاذية (كهرطيسية)" data-language-autonym="العربية" data-language-local-name="arabiska" 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/Permeabilid%C3%A1_magn%C3%A9tica" title="Permeabilidá magnética – asturiska" lang="ast" hreflang="ast" data-title="Permeabilidá magnética" data-language-autonym="Asturianu" data-language-local-name="asturiska" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D1%96%D1%82%D0%BD%D0%B0%D1%8F_%D0%BF%D1%80%D0%B0%D0%BD%D1%96%D0%BA%D0%B0%D0%BB%D1%8C%D0%BD%D0%B0%D1%81%D1%86%D1%8C" title="Магнітная пранікальнасць – belarusiska" lang="be" hreflang="be" data-title="Магнітная пранікальнасць" data-language-autonym="Беларуская" data-language-local-name="belarusiska" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/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 – bulgariska" lang="bg" hreflang="bg" data-title="Магнитна проницаемост" data-language-autonym="Български" data-language-local-name="bulgariska" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Permeabilnost" title="Permeabilnost – bosniska" lang="bs" hreflang="bs" data-title="Permeabilnost" data-language-autonym="Bosanski" data-language-local-name="bosniska" 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/Permeabilitat" title="Permeabilitat – katalanska" lang="ca" hreflang="ca" data-title="Permeabilitat" data-language-autonym="Català" data-language-local-name="katalanska" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Permeabilita" title="Permeabilita – tjeckiska" lang="cs" hreflang="cs" data-title="Permeabilita" data-language-autonym="Čeština" data-language-local-name="tjeckiska" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Permeabilitet_(elektromagnetisme)" title="Permeabilitet (elektromagnetisme) – danska" lang="da" hreflang="da" data-title="Permeabilitet (elektromagnetisme)" data-language-autonym="Dansk" data-language-local-name="danska" 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/Magnetische_Permeabilit%C3%A4t" title="Magnetische Permeabilität – tyska" lang="de" hreflang="de" data-title="Magnetische Permeabilität" data-language-autonym="Deutsch" data-language-local-name="tyska" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Magnetiline_l%C3%A4bitavus" title="Magnetiline läbitavus – estniska" lang="et" hreflang="et" data-title="Magnetiline läbitavus" data-language-autonym="Eesti" data-language-local-name="estniska" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%9C%CE%B1%CE%B3%CE%BD%CE%B7%CF%84%CE%B9%CE%BA%CE%AE_%CE%B4%CE%B9%CE%B1%CF%80%CE%B5%CF%81%CE%B1%CF%84%CF%8C%CF%84%CE%B7%CF%84%CE%B1" title="Μαγνητική διαπερατότητα – grekiska" lang="el" hreflang="el" data-title="Μαγνητική διαπερατότητα" data-language-autonym="Ελληνικά" data-language-local-name="grekiska" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Permeability_(electromagnetism)" title="Permeability (electromagnetism) – engelska" lang="en" hreflang="en" data-title="Permeability (electromagnetism)" data-language-autonym="English" data-language-local-name="engelska" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Permeabilidad_magn%C3%A9tica" title="Permeabilidad magnética – spanska" lang="es" hreflang="es" data-title="Permeabilidad magnética" data-language-autonym="Español" data-language-local-name="spanska" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Magneta_permeablo" title="Magneta permeablo – esperanto" lang="eo" hreflang="eo" data-title="Magneta permeablo" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Iragazkortasun_magnetiko" title="Iragazkortasun magnetiko – baskiska" lang="eu" hreflang="eu" data-title="Iragazkortasun magnetiko" data-language-autonym="Euskara" data-language-local-name="baskiska" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%AA%D8%B1%D8%A7%D9%88%D8%A7%DB%8C%DB%8C_%D9%85%D8%BA%D9%86%D8%A7%D8%B7%DB%8C%D8%B3%DB%8C" title="تراوایی مغناطیسی – persiska" lang="fa" hreflang="fa" data-title="تراوایی مغناطیسی" data-language-autonym="فارسی" data-language-local-name="persiska" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Perm%C3%A9abilit%C3%A9_magn%C3%A9tique" title="Perméabilité magnétique – franska" lang="fr" hreflang="fr" data-title="Perméabilité magnétique" data-language-autonym="Français" data-language-local-name="franska" 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/Tr%C3%A9scaoilteacht" title="Tréscaoilteacht – iriska" lang="ga" hreflang="ga" data-title="Tréscaoilteacht" data-language-autonym="Gaeilge" data-language-local-name="iriska" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Permeabilidade_magn%C3%A9tica" title="Permeabilidade magnética – galiciska" lang="gl" hreflang="gl" data-title="Permeabilidade magnética" data-language-autonym="Galego" data-language-local-name="galiciska" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%ED%88%AC%EC%9E%90%EC%9C%A8" title="투자율 – koreanska" lang="ko" hreflang="ko" data-title="투자율" data-language-autonym="한국어" data-language-local-name="koreanska" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%84%D5%A1%D5%A3%D5%B6%D5%AB%D5%BD%D5%A1%D5%AF%D5%A1%D5%B6_%D5%A9%D5%A1%D6%83%D5%A1%D5%B6%D6%81%D5%A5%D5%AC%D5%AB%D5%B8%D6%82%D5%A9%D5%B5%D5%B8%D6%82%D5%B6" title="Մագնիսական թափանցելիություն – armeniska" lang="hy" hreflang="hy" data-title="Մագնիսական թափանցելիություն" data-language-autonym="Հայերեն" data-language-local-name="armeniska" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%9A%E0%A5%81%E0%A4%AE%E0%A5%8D%E0%A4%AC%E0%A4%95%E0%A4%B6%E0%A5%80%E0%A4%B2%E0%A4%A4%E0%A4%BE" title="चुम्बकशीलता – hindi" lang="hi" hreflang="hi" data-title="चुम्बकशीलता" data-language-autonym="हिन्दी" data-language-local-name="hindi" 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/Magnetska_permeabilnost" title="Magnetska permeabilnost – kroatiska" lang="hr" hreflang="hr" data-title="Magnetska permeabilnost" data-language-autonym="Hrvatski" data-language-local-name="kroatiska" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Permeabilitas_magnetik" title="Permeabilitas magnetik – indonesiska" lang="id" hreflang="id" data-title="Permeabilitas magnetik" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiska" 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/Segulsv%C3%B6runarstu%C3%B0ull" title="Segulsvörunarstuðull – isländska" lang="is" hreflang="is" data-title="Segulsvörunarstuðull" data-language-autonym="Íslenska" data-language-local-name="isländska" 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/Permeabilit%C3%A0_magnetica" title="Permeabilità magnetica – italienska" lang="it" hreflang="it" data-title="Permeabilità magnetica" data-language-autonym="Italiano" data-language-local-name="italienska" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%A4%D7%A8%D7%9E%D7%90%D7%91%D7%99%D7%9C%D7%99%D7%95%D7%AA" title="פרמאביליות – hebreiska" lang="he" hreflang="he" data-title="פרמאביליות" data-language-autonym="עברית" data-language-local-name="hebreiska" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D1%82%D1%96%D0%BA_%D3%A9%D1%82%D1%96%D0%BC%D0%B4%D1%96%D0%BB%D1%96%D0%BA" title="Магниттік өтімділік – kazakiska" lang="kk" hreflang="kk" data-title="Магниттік өтімділік" data-language-autonym="Қазақша" data-language-local-name="kazakiska" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Magnetin%C4%97_skvarba" title="Magnetinė skvarba – litauiska" lang="lt" hreflang="lt" data-title="Magnetinė skvarba" data-language-autonym="Lietuvių" data-language-local-name="litauiska" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Permeabilit%C3%A1s" title="Permeabilitás – ungerska" lang="hu" hreflang="hu" data-title="Permeabilitás" data-language-autonym="Magyar" data-language-local-name="ungerska" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%9A%E0%A5%81%E0%A4%82%E0%A4%AC%E0%A4%95%E0%A5%80%E0%A4%AF_%E0%A4%AA%E0%A4%BE%E0%A4%B0%E0%A5%8D%E0%A4%AF%E0%A4%A4%E0%A4%BE" title="चुंबकीय पार्यता – marathi" lang="mr" hreflang="mr" data-title="चुंबकीय पार्यता" data-language-autonym="मराठी" data-language-local-name="marathi" 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/Kebolehtelapan_(keelektromagnetan)" title="Kebolehtelapan (keelektromagnetan) – malajiska" lang="ms" hreflang="ms" data-title="Kebolehtelapan (keelektromagnetan)" data-language-autonym="Bahasa Melayu" data-language-local-name="malajiska" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Magnetische_permeabiliteit" title="Magnetische permeabiliteit – nederländska" lang="nl" hreflang="nl" data-title="Magnetische permeabiliteit" data-language-autonym="Nederlands" data-language-local-name="nederländska" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E9%80%8F%E7%A3%81%E7%8E%87" title="透磁率 – japanska" lang="ja" hreflang="ja" data-title="透磁率" data-language-autonym="日本語" data-language-local-name="japanska" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Magneetisk_permeabiliteet" title="Magneetisk permeabiliteet – nordfrisiska" lang="frr" hreflang="frr" data-title="Magneetisk permeabiliteet" data-language-autonym="Nordfriisk" data-language-local-name="nordfrisiska" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Permeabilitet_(fysikk)" title="Permeabilitet (fysikk) – norskt bokmål" lang="nb" hreflang="nb" data-title="Permeabilitet (fysikk)" data-language-autonym="Norsk bokmål" data-language-local-name="norskt bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Permeabilitet_i_fysikk" title="Permeabilitet i fysikk – nynorska" lang="nn" hreflang="nn" data-title="Permeabilitet i fysikk" data-language-autonym="Norsk nynorsk" data-language-local-name="nynorska" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Przenikalno%C5%9B%C4%87_magnetyczna" title="Przenikalność magnetyczna – polska" lang="pl" hreflang="pl" data-title="Przenikalność magnetyczna" data-language-autonym="Polski" data-language-local-name="polska" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Permeabilidade_magn%C3%A9tica" title="Permeabilidade magnética – portugisiska" lang="pt" hreflang="pt" data-title="Permeabilidade magnética" data-language-autonym="Português" data-language-local-name="portugisiska" 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/Permeabilitate_magnetic%C4%83" title="Permeabilitate magnetică – rumänska" lang="ro" hreflang="ro" data-title="Permeabilitate magnetică" data-language-autonym="Română" data-language-local-name="rumänska" 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%9C%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D0%B0%D1%8F_%D0%BF%D1%80%D0%BE%D0%BD%D0%B8%D1%86%D0%B0%D0%B5%D0%BC%D0%BE%D1%81%D1%82%D1%8C" title="Магнитная проницаемость – ryska" lang="ru" hreflang="ru" data-title="Магнитная проницаемость" data-language-autonym="Русский" data-language-local-name="ryska" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Permeability_(electromagnetism)" title="Permeability (electromagnetism) – Simple English" lang="en-simple" hreflang="en-simple" data-title="Permeability (electromagnetism)" 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/Permeabilita_(magnetizmus)" title="Permeabilita (magnetizmus) – slovakiska" lang="sk" hreflang="sk" data-title="Permeabilita (magnetizmus)" data-language-autonym="Slovenčina" data-language-local-name="slovakiska" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Magnetna_permeabilnost" title="Magnetna permeabilnost – slovenska" lang="sl" hreflang="sl" data-title="Magnetna permeabilnost" data-language-autonym="Slovenščina" data-language-local-name="slovenska" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9F%D0%B5%D1%80%D0%BC%D0%B5%D0%B0%D0%B1%D0%B8%D0%BB%D0%BD%D0%BE%D1%81%D1%82_(%D0%B5%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D0%BC%D0%B0%D0%B3%D0%BD%D0%B5%D1%82%D0%B8%D0%B7%D0%B0%D0%BC)" title="Пермеабилност (електромагнетизам) – serbiska" lang="sr" hreflang="sr" data-title="Пермеабилност (електромагнетизам)" data-language-autonym="Српски / srpski" data-language-local-name="serbiska" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Magnetna_permeabilnost" title="Magnetna permeabilnost – serbokroatiska" lang="sh" hreflang="sh" data-title="Magnetna permeabilnost" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatiska" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Permeabiliteetti" title="Permeabiliteetti – finska" lang="fi" hreflang="fi" data-title="Permeabiliteetti" data-language-autonym="Suomi" data-language-local-name="finska" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%85%E0%B0%AF%E0%B0%B8%E0%B1%8D%E0%B0%95%E0%B0%BE%E0%B0%82%E0%B0%A4_%E0%B0%AA%E0%B0%B0%E0%B1%8D%E0%B0%AE%E0%B0%BF%E0%B0%AF%E0%B0%AC%E0%B0%BF%E0%B0%B2%E0%B0%BF%E0%B0%9F%E0%B1%80" title="అయస్కాంత పర్మియబిలిటీ – telugu" lang="te" hreflang="te" data-title="అయస్కాంత పర్మియబిలిటీ" data-language-autonym="తెలుగు" data-language-local-name="telugu" 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%AA%E0%B8%A0%E0%B8%B2%E0%B8%9E%E0%B9%83%E0%B8%AB%E0%B9%89%E0%B8%8B%E0%B8%B6%E0%B8%A1%E0%B8%9C%E0%B9%88%E0%B8%B2%E0%B8%99%E0%B9%84%E0%B8%94%E0%B9%89%E0%B8%97%E0%B8%B2%E0%B8%87%E0%B9%81%E0%B8%A1%E0%B9%88%E0%B9%80%E0%B8%AB%E0%B8%A5%E0%B9%87%E0%B8%81" title="สภาพให้ซึมผ่านได้ทางแม่เหล็ก – thailändska" lang="th" hreflang="th" data-title="สภาพให้ซึมผ่านได้ทางแม่เหล็ก" data-language-autonym="ไทย" data-language-local-name="thailändska" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Ge%C3%A7irgenlik_(elektromanyetizma)" title="Geçirgenlik (elektromanyetizma) – turkiska" lang="tr" hreflang="tr" data-title="Geçirgenlik (elektromanyetizma)" data-language-autonym="Türkçe" data-language-local-name="turkiska" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9C%D0%B0%D0%B3%D0%BD%D1%96%D1%82%D0%BD%D0%B0_%D0%BF%D1%80%D0%BE%D0%BD%D0%B8%D0%BA%D0%BD%D1%96%D1%81%D1%82%D1%8C" title="Магнітна проникність – ukrainska" lang="uk" hreflang="uk" data-title="Магнітна проникність" data-language-autonym="Українська" data-language-local-name="ukrainska" 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%85%D9%82%D9%86%D8%A7%D8%B7%DB%8C%D8%B3%DB%8C_%D9%86%D9%81%D9%88%D8%B0%DB%8C%D8%AA" title="مقناطیسی نفوذیت – urdu" lang="ur" hreflang="ur" data-title="مقناطیسی نفوذیت" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C4%90%E1%BB%99_t%E1%BB%AB_th%E1%BA%A9m" title="Độ từ thẩm – vietnamesiska" lang="vi" hreflang="vi" data-title="Độ từ thẩm" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesiska" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E7%A3%81%E5%AF%BC%E7%8E%87" title="磁导率 – kinesiska" lang="zh" hreflang="zh" data-title="磁导率" data-language-autonym="中文" data-language-local-name="kinesiska" class="interlanguage-link-target"><span>中文</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/Q28352#sitelinks-wikipedia" title="Redigera interwikilänkar" class="wbc-editpage">Redigera länkar</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="Namnrymder"> <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/Permeabilitet" title="Visa innehållssidan [c]" accesskey="c"><span>Artikel</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Diskussion:Permeabilitet" rel="discussion" title="Diskussion om innehållssidan [t]" accesskey="t"><span>Diskussion</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Ändra språkvariant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">svenska</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Visningar"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Permeabilitet"><span>Läs</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Permeabilitet&veaction=edit" title="Redigera denna sida [v]" accesskey="v"><span>Redigera</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Permeabilitet&action=edit" title="Redigera wikitexten för den här sidan [e]" accesskey="e"><span>Redigera wikitext</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Permeabilitet&action=history" title="Tidigare versioner av sidan [h]" accesskey="h"><span>Visa historik</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Sidverktyg"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Verktyg" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Verktyg</span> </label> <div 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">Verktyg</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">dölj</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Fler alternativ" > <div class="vector-menu-heading"> Åtgärder </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/Permeabilitet"><span>Läs</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Permeabilitet&veaction=edit" title="Redigera denna sida [v]" accesskey="v"><span>Redigera</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Permeabilitet&action=edit" title="Redigera wikitexten för den här sidan [e]" accesskey="e"><span>Redigera wikitext</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Permeabilitet&action=history"><span>Visa historik</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Allmänt </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:L%C3%A4nkar_hit/Permeabilitet" title="Lista över alla wikisidor som länkar hit [j]" accesskey="j"><span>Sidor som länkar hit</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:Senaste_relaterade_%C3%A4ndringar/Permeabilitet" rel="nofollow" title="Visa senaste ändringarna av sidor som den här sidan länkar till [k]" accesskey="k"><span>Relaterade ändringar</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:Specialsidor" title="Lista över alla specialsidor [q]" accesskey="q"><span>Specialsidor</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Permeabilitet&oldid=54180875" title="Permanent länk till den här versionen av sidan"><span>Permanent länk</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Permeabilitet&action=info" title="Mer information om denna sida"><span>Sidinformation</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:Citera&page=Permeabilitet&id=54180875&wpFormIdentifier=titleform" title="Information om hur den här artikeln kan användas som referens"><span>Använd som referens</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fsv.wikipedia.org%2Fwiki%2FPermeabilitet"><span>Hämta förkortad url</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fsv.wikipedia.org%2Fwiki%2FPermeabilitet"><span>Ladda ner QR-kod</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"> Skriv ut/exportera </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=Special:Bok&bookcmd=book_creator&referer=Permeabilitet"><span>Skapa en bok</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=Permeabilitet&action=show-download-screen"><span>Ladda ned som PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Permeabilitet&printable=yes" title="Utskriftsvänlig version av den här sidan [p]" accesskey="p"><span>Utskriftsvänlig version</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"> På andra projekt </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:Magnetic_permeability" hreflang="en"><span>Commons</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/Q28352" title="Länk till anslutet databasobjekt [g]" accesskey="g"><span>Wikidata-objekt</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="Sidverktyg"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Utseende"> <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">Utseende</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">flytta till sidofältet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">dölj</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">Från Wikipedia</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="sv" dir="ltr"><dl><dd><i>Permeabilitet kan också avse <a href="/wiki/Vattenpermeabilitet" title="Vattenpermeabilitet">vattenpermeabilitet</a></i></dd></dl> <style data-mw-deduplicate="TemplateStyles:r53696904">.mw-parser-output .infobox{border:1px solid #aaa;background-color:#f9f9f9;color:black;margin:.5em 0 .5em 1em;padding:.2em;float:right;clear:right;width:22em;text-align:left;font-size:88%;line-height:1.6em}.mw-parser-output .infobox td,.mw-parser-output .infobox th{vertical-align:top;padding:0 .2em}.mw-parser-output .infobox caption{font-size:larger}.mw-parser-output .infobox.bordered{border-collapse:collapse}.mw-parser-output .infobox.bordered td,.mw-parser-output .infobox.bordered th{border:1px solid #aaa}.mw-parser-output .infobox.bordered .borderless td,.mw-parser-output .infobox.bordered .borderless th{border:0}.mw-parser-output .infobox-showbutton button,.mw-parser-output .infobox-showbutton .mw-collapsible-text{color:inherit}.mw-parser-output .infobox.bordered .mergedtoprow td,.mw-parser-output .infobox.bordered .mergedtoprow th{border:0;border-top:1px solid #aaa;border-right:1px solid #aaa}.mw-parser-output .infobox.bordered .mergedrow td,.mw-parser-output .infobox.bordered .mergedrow th{border:0;border-right:1px solid #aaa}.mw-parser-output .infobox.geography{border:1px solid #ccd2d9;text-align:left;border-collapse:collapse;line-height:1.2em;font-size:90%}.mw-parser-output .infobox.geography td,.mw-parser-output .infobox.geography th{border-top:solid 1px #ccd2d9;padding:0.4em 0.6em 0.4em 0.6em}.mw-parser-output .infobox.geography .mergedtoprow td,.mw-parser-output .infobox.geography .mergedtoprow th{border-top:solid 1px #ccd2d9;padding:0.4em 0.6em 0.2em 0.6em}.mw-parser-output .infobox.geography .mergedrow td,.mw-parser-output .infobox.geography .mergedrow th{border:0;padding:0 0.6em 0.2em 0.6em}.mw-parser-output .infobox.geography .mergedbottomrow td,.mw-parser-output .infobox.geography .mergedbottomrow th{border-top:0;border-bottom:solid 1px #ccd2d9;padding:0 0.6em 0.4em 0.6em}.mw-parser-output .infobox.geography .maptable td,.mw-parser-output .infobox.geography .maptable th{border:0;padding:0}</style><table class="infobox" style="border-spacing:3px;"><tbody><tr><td colspan="2" class="" style="padding:2px; text-align:center; font-size: 125%; font-weight: bold; background:#ABCDEF;">Permeabilitet</td></tr><tr><td colspan="2" class="" style="text-align:center;"> <span typeof="mw:File"><a href="/wiki/Fil:Permeability_by_Zureks.svg" class="mw-file-description" title="Permeability by Zureks.svg"><img alt="Permeability by Zureks.svg" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/04/Permeability_by_Zureks.svg/200px-Permeability_by_Zureks.svg.png" decoding="async" width="200" height="152" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/04/Permeability_by_Zureks.svg/300px-Permeability_by_Zureks.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/04/Permeability_by_Zureks.svg/400px-Permeability_by_Zureks.svg.png 2x" data-file-width="744" data-file-height="567" /></a></span> <div style="">Förenklad jämförelse med olika permeabiliteter för: <a href="/wiki/Ferromagnetism" title="Ferromagnetism">ferromagneter</a> (μ<sub>f</sub>), <a href="/wiki/Paramagnetism" title="Paramagnetism">paramagneter</a>(μ<sub>p</sub>), vakuum(μ<sub>0</sub>) och <a href="/wiki/Diamagnetism" title="Diamagnetism">diamagneter</a> (μ<sub>d</sub>).</div></td></tr><tr><th colspan="2" style="text-align:center;background:#ABCDEF;">Grundläggande</th></tr><tr><th style="text-align:left;"><a href="/wiki/Definition" title="Definition">Definition</a></th><td class="" style="">Förmågan hos ett <a href="/wiki/Material" title="Material">material</a> att uppehålla skapandet av ett <a href="/wiki/Magnetiskt_f%C3%A4lt" class="mw-redirect" title="Magnetiskt fält">magnetiskt fält</a> i sig själv</td></tr><tr><th style="text-align:left;"><a href="/wiki/Storhet" title="Storhet">Storhetssymbol(er)</a></th><td class="" style=""><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 \mu }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>μ</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mu }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/9fd47b2a39f7a7856952afec1f1db72c67af6161" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:1.402ex; height:2.176ex;" alt="{\displaystyle \mu }"></span></td></tr><tr><th colspan="2" style="text-align:center;background:#ABCDEF;">Enheter</th></tr><tr><th style="text-align:left;"><a href="/wiki/SI-enhet" title="SI-enhet">SI-enhet</a></th><td class="" style=""><a href="/wiki/Henry_(enhet)" title="Henry (enhet)">H</a> · <a href="/wiki/Meter" title="Meter">m</a><sup>−1</sup><br />= <a href="/wiki/Volt" title="Volt">V</a> · <a href="/wiki/Sekund" title="Sekund">s</a> · <a href="/wiki/Ampere" title="Ampere">A</a><sup>−1</sup>· <a href="/wiki/Meter" title="Meter">m</a><sup>−1</sup><br />= <a href="/wiki/Newton_(enhet)" title="Newton (enhet)">N</a> · <a href="/wiki/Ampere" title="Ampere">A</a><sup>−2</sup><br />= m · kg · s<sup>−2</sup> · A<sup>−2</sup></td></tr><tr><th style="text-align:left;"><a href="/wiki/Dimensionsanalys" title="Dimensionsanalys">SI-dimension</a></th><td class="" style=""><a href="/wiki/L%C3%A4ngd" title="Längd">L</a> · <a href="/wiki/Massa" title="Massa">M</a> · <a href="/wiki/Tid" title="Tid">T</a><sup>−2</sup> · <a href="/w/index.php?title=Amperage&action=edit&redlink=1" class="new" title="Amperage [inte skriven än]">I</a><sup>–2</sup></td></tr><tr><th colspan="2" style="text-align:center;background:#ABCDEF;">Anmärkningar</th></tr><tr><th style="text-align:left;">Se även</th><td class="" style=""><a href="/wiki/Magnetiska_konstanten" title="Magnetiska konstanten">Magnetiska konstanten</a></td></tr></tbody></table> <p>I <a href="/wiki/Elektromagnetism" title="Elektromagnetism">elektromagnetism</a> är <b>permeabiliteten</b> förmågan hos ett material att uppehålla skapandet av ett <a href="/wiki/Magnetiskt_f%C3%A4lt" class="mw-redirect" title="Magnetiskt fält">magnetiskt fält</a> i sig själv. Med andra ord, det är graden av <a href="/wiki/Magnetisering" title="Magnetisering">magnetisering</a> som ett material får som svar på ett pålagt <a href="/wiki/Magnetf%C3%A4lt" title="Magnetfält">magnetfält</a>. Permeabilitet brukar skrivas som <a href="/wiki/My" title="My">μ</a>. Termen myntades i september 1885 av <a href="/wiki/Oliver_Heaviside" title="Oliver Heaviside">Oliver Heaviside</a>. Motsatsen till permeabiliteten är <a href="/wiki/Reluktans" title="Reluktans">reluktans</a>. </p><p> I <a href="/wiki/SI-enhet" title="SI-enhet">SI-enheter</a> mäts permeabilitet i <a href="/wiki/Henry_(enhet)" title="Henry (enhet)">henry</a> per meter (H·m<sup>−1</sup>) eller <a href="/wiki/Newton_(enhet)" title="Newton (enhet)">newton</a> per <a href="/wiki/Ampere" title="Ampere">ampere</a> kvadrat (N·A<sup>−2</sup>). Permeabiliteten i vakuum (μ<sub>0</sub>), även känd som <a href="/wiki/Magnetiska_konstanten" title="Magnetiska konstanten">magnetiska konstanten</a>, är ett mått på motståndet då ett magnetfält skapas i ett klassiskt <a href="/wiki/Vakuum" title="Vakuum">vakuum</a>. Den magnetiska konstanten har det exakta<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-reference-link-bracket">[</span>1<span class="cite-reference-link-bracket">]</span></a></sup> värdet µ<sub>0</sub> = 4π×10<sup>−7</sup> H·m<sup>−1</sup>≈ 1.2566370614…×10<sup>−6</sup> H·m<sup>−1</sup> eller N·A<sup>−2</sup>).<style data-mw-deduplicate="TemplateStyles:r51224235">.mw-parser-output table.ambox{margin:0 10%;border-collapse:collapse;background:#fbfbfb;border:1px solid #aaa;border-left:10px solid #608ec2}.mw-parser-output table.ambox th.ambox-text,.mw-parser-output table.ambox td.ambox-text{padding:.25em .5em;width:100%}.mw-parser-output table.ambox td.ambox-image{padding:2px 0 2px .5em;text-align:center;vertical-align:middle}.mw-parser-output table.ambox td.ambox-imageright{padding:2px 4px 2px 0;text-align:center;vertical-align:middle}.mw-parser-output table.ambox-notice{border-left:10px solid #608ec2}.mw-parser-output table.ambox-delete,.mw-parser-output table.ambox-serious{border-left:10px solid #b22222}.mw-parser-output table.ambox-content{border-left:10px solid #f28500}.mw-parser-output table.ambox-style{border-left:10px solid #f4c430}.mw-parser-output table.ambox-merge{border-left:10px solid #9932cc}.mw-parser-output table.ambox-protection{border-left:10px solid #bba}.mw-parser-output .ambox+link+.ambox{border-top-width:0}.mw-parser-output .messagebox{border:1px solid #aaaaaa;background-color:#f8f9fa;width:80%;margin:0 auto 1em auto;padding:.2em}.mw-parser-output .messagebox.merge{border:1px solid #c0b8cc;background-color:#f0e5ff;text-align:center}.mw-parser-output .messagebox.cleanup{border:1px solid #9f9fff;background-color:#efefff;text-align:center}.mw-parser-output .messagebox.standard-talk{border:1px solid #c0c090;background-color:#f8eaba}.mw-parser-output .messagebox.nested-talk{border:1px solid #c0c090;background-color:#f8eaba;width:100%;margin:2px 4px}</style></p><table class="metadata ambox ambox-content" style=""> <tbody><tr> <td class="ambox-image"> <div style="width:52px;"><span typeof="mw:File"><a href="/wiki/Fil:Ambox_outdated_serious.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Ambox_outdated_serious.svg/40px-Ambox_outdated_serious.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Ambox_outdated_serious.svg/60px-Ambox_outdated_serious.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Ambox_outdated_serious.svg/80px-Ambox_outdated_serious.svg.png 2x" data-file-width="620" data-file-height="620" /></a></span></div></td> <td class="ambox-text">Den här artikeln eller det här avsnittet <b>innehåller inaktuella uppgifter och behöver uppdateras</b>. <small>(2023-06)</small> <hr /> <span style="font-size:85%">Hjälp gärna Wikipedia att åtgärda problemet genom att <span class="plainlinks" title="tryck här för att redigera denna artikel"><a class="external text" href="https://sv.wikipedia.org/w/index.php?title=Permeabilitet&action=edit">redigera artikeln</a></span> eller diskutera saken på <a href="/wiki/Diskussion:Permeabilitet" title="Diskussion:Permeabilitet">diskussionssidan</a>.</span></td> </tr> </tbody></table> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Förklaring"><span id="F.C3.B6rklaring"></span>Förklaring</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Permeabilitet&veaction=edit&section=1" title="Redigera avsnitt: Förklaring" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Permeabilitet&action=edit&section=1" title="Redigera avsnitts källkod: Förklaring"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>I <a href="/wiki/Elektromagnetism" title="Elektromagnetism">elektromagnetism</a> representerar <b>H</b> hur ett magnetfält <b>B</b> influerar de magnetiska dipolerna i ett material, detta inkluderar förflyttning och vridning av dipoler. Kopplingen till permeabilitet är </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 {B} =\mu \mathbf {H} ,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">B</mi> </mrow> <mo>=</mo> <mi>μ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">H</mi> </mrow> <mo>,</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {B} =\mu \mathbf {H} ,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/a575e79a4a2ae086cb8e2db0b14d3ddbd466df2d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:9.14ex; height:2.676ex;" alt="{\displaystyle \mathbf {B} =\mu \mathbf {H} ,}"></span></dd></dl> <p>där permeabiliteten, μ är en <a href="/wiki/Skal%C3%A4r" title="Skalär">skalär</a> om mediet är <a href="/wiki/Isotrop" class="mw-redirect" title="Isotrop">isotropt</a> eller en andra ordningens <a href="/wiki/Tensor" title="Tensor">tensor</a> om mediet är <a href="/wiki/Anisotrop" class="mw-redirect" title="Anisotrop">anisotropt</a>. </p><p>Generellt är permeabiliteten inte en konstant eftersom den kan variera med avseende på position i mediet, frekvensen av det pålagda fältet, <a href="/wiki/Luftfuktighet" title="Luftfuktighet">luftfuktighet</a>, temperatur och andra parametrar. I ett <a href="/w/index.php?title=Ickelinj%C3%A4rt_medium&action=edit&redlink=1" class="new" title="Ickelinjärt medium [inte skriven än]">ickelinjärt medium</a> kan permeabiliteten bero på styrkan hos magnetfältet. </p><p>Permeabiliteten som funktion av frekvens kan ha reella eller komplexa värden. I <a href="/wiki/Ferromagnetism" title="Ferromagnetism">ferromagnetiska</a> material uppvisar relationen mellan <b>B</b> och <b>H</b> icke-linearitet och <a href="/wiki/Hysteres" title="Hysteres">hysteres</a>: <b>B</b> är inte en funktion av bara <b>H</b>,<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-reference-link-bracket">[</span>2<span class="cite-reference-link-bracket">]</span></a></sup> utan den beror också på materialets historia. För dessa material är det ibland användbart att undersöka den <i>inkrementella permeabiliteten</i> vilken definieras som </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 \Delta \mathbf {B} =\mu _{\Delta }\Delta \mathbf {H} .}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi mathvariant="normal">Δ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">B</mi> </mrow> <mo>=</mo> <msub> <mi>μ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="normal">Δ</mi> </mrow> </msub> <mi mathvariant="normal">Δ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">H</mi> </mrow> <mo>.</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \Delta \mathbf {B} =\mu _{\Delta }\Delta \mathbf {H} .}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/f8cfcffb083782d61bc7900f616db4287a1f6387" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:14.612ex; height:2.676ex;" alt="{\displaystyle \Delta \mathbf {B} =\mu _{\Delta }\Delta \mathbf {H} .}"></span></dd></dl> <p>Denna definition är användbar i lokala linjäriseringar av icke-linjära material, till exempel då <a href="/wiki/Newtons_metod" title="Newtons metod">Newtons metod</a> används för att beräkna <a href="/wiki/M%C3%A4ttnad_(magnetisk)" title="Mättnad (magnetisk)">mättnad</a> i en magnetisk krets. </p><p>Permeabiliteten är <a href="/wiki/Induktans" title="Induktans">induktansen</a> per enhetslängd. In <a href="/wiki/SI-enhet" title="SI-enhet">SI-enheter</a> mäts permeabiliteten i <a href="/wiki/Henry_(enhet)" title="Henry (enhet)">henry</a> per meter (H·m<sup>−1</sup> = J/(A<sup>2</sup>·m) = N A<sup>−2</sup>). H-fältet har dimensionen <a href="/wiki/Elektrisk_str%C3%B6m" title="Elektrisk ström">ström</a> per enhetslängd och mäts i <a href="/wiki/Ampere" title="Ampere">ampere</a> per meter (A m<sup>−1</sup>). Produkten μ<b>H</b> har därför dimensionen induktans gånger ström per enhetsarea (H·A/m<sup>2</sup>). Men induktans är <a href="/wiki/Magnetiskt_fl%C3%B6de" class="mw-redirect" title="Magnetiskt flöde">magnetiskt flöde</a> per enhetsström, så produkten har dimension magnetiskt flöde per enhetsarea. Detta är bara magnetfältet <b>B</b>, vilken mäts i <a href="/wiki/Weber_(enhet)" title="Weber (enhet)">weber</a> (<a href="/wiki/Volt" title="Volt">volt</a>-<a href="/wiki/Sekund" title="Sekund">sekund</a>) per kvadratmeter (V·s/m<sup>2</sup>), eller <a href="/wiki/Tesla_(enhet)" title="Tesla (enhet)">tesla</a> (T). </p><p><b>B</b> är relaterad till Lorentzkraften på en laddning <i>q</i> i rörelse: </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 {F} =q(\mathbf {E} +\mathbf {v} \times \mathbf {B} ).}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">F</mi> </mrow> <mo>=</mo> <mi>q</mi> <mo stretchy="false">(</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">E</mi> </mrow> <mo>+</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> <mo>×</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">B</mi> </mrow> <mo stretchy="false">)</mo> <mo>.</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mathbf {F} =q(\mathbf {E} +\mathbf {v} \times \mathbf {B} ).}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/98b985e6332ac21f2eb2b6aeefae9135fe6fe3c6" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:19.057ex; height:2.843ex;" alt="{\displaystyle \mathbf {F} =q(\mathbf {E} +\mathbf {v} \times \mathbf {B} ).}"></span></dd></dl> <p>Laddningen <i>q</i> mäts i <a href="/wiki/Coulomb" title="Coulomb">coulomb</a> (C), hastigheten <i>v</i> i <a href="/wiki/Meter" title="Meter">meter</a> per <a href="/wiki/Sekund" title="Sekund">sekund</a> (m/s) och kraften <i>F</i> mäts i <a href="/wiki/Newton_(enhet)" title="Newton (enhet)">newton</a> (N): </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 q\mathbf {v} \times \mathbf {B} =C\cdot {\dfrac {m}{s}}\cdot {\dfrac {V\cdot s}{m^{2}}}={\dfrac {C\cdot (J/C)}{m}}={\dfrac {J}{m}}=N}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>q</mi> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">v</mi> </mrow> <mo>×</mo> <mrow class="MJX-TeXAtom-ORD"> <mi mathvariant="bold">B</mi> </mrow> <mo>=</mo> <mi>C</mi> <mo>⋅</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mfrac> <mi>m</mi> <mi>s</mi> </mfrac> </mstyle> </mrow> <mo>⋅</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mfrac> <mrow> <mi>V</mi> <mo>⋅</mo> <mi>s</mi> </mrow> <msup> <mi>m</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> </mfrac> </mstyle> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mfrac> <mrow> <mi>C</mi> <mo>⋅</mo> <mo stretchy="false">(</mo> <mi>J</mi> <mrow class="MJX-TeXAtom-ORD"> <mo>/</mo> </mrow> <mi>C</mi> <mo stretchy="false">)</mo> </mrow> <mi>m</mi> </mfrac> </mstyle> </mrow> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mfrac> <mi>J</mi> <mi>m</mi> </mfrac> </mstyle> </mrow> <mo>=</mo> <mi>N</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle q\mathbf {v} \times \mathbf {B} =C\cdot {\dfrac {m}{s}}\cdot {\dfrac {V\cdot s}{m^{2}}}={\dfrac {C\cdot (J/C)}{m}}={\dfrac {J}{m}}=N}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/85f6abfab74f6d59980627b1a5fec57feced9dc5" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.171ex; width:48.441ex; height:6.009ex;" alt="{\displaystyle q\mathbf {v} \times \mathbf {B} =C\cdot {\dfrac {m}{s}}\cdot {\dfrac {V\cdot s}{m^{2}}}={\dfrac {C\cdot (J/C)}{m}}={\dfrac {J}{m}}=N}"></span></dd></dl> <p><b>H</b> är kopplad till densiteten av magnetiska dipoler. En magnetisk dipol är en slinga av elektrisk ström. Dipolmomenten har dimension ström gånger area och mäts därför i ampere kvadratmeter (A·m<sup>2</sup>) och magnituden är lika med strömmen i slingan gånger arean av slingan.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-reference-link-bracket">[</span>3<span class="cite-reference-link-bracket">]</span></a></sup> På avstånd är magnituden av <b>H</b>-fältet från en dipol proportionellt mot dipolmomentet delat på avståndet i kubik,<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-reference-link-bracket">[</span>4<span class="cite-reference-link-bracket">]</span></a></sup> vilken har dimension ström per enhetslängd. </p> <div class="mw-heading mw-heading2"><h2 id="Relativ_permeabilitet_och_susceptibilitet">Relativ permeabilitet och susceptibilitet</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Permeabilitet&veaction=edit&section=2" title="Redigera avsnitt: Relativ permeabilitet och susceptibilitet" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Permeabilitet&action=edit&section=2" title="Redigera avsnitts källkod: Relativ permeabilitet och susceptibilitet"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Relativ permeabilitet μ<sub>r</sub> är förhållandet mellan permeabiliteten i ett visst medium och vakuumpermeabiliteten μ<sub>0</sub>: </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 \mu _{r}={\frac {\mu }{\mu _{0}}},}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>μ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>r</mi> </mrow> </msub> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>μ</mi> <msub> <mi>μ</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </msub> </mfrac> </mrow> <mo>,</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mu _{r}={\frac {\mu }{\mu _{0}}},}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/05686aa14e6a2e04ce6546d44f831476885807ee" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.338ex; width:9.413ex; height:5.343ex;" alt="{\displaystyle \mu _{r}={\frac {\mu }{\mu _{0}}},}"></span></dd></dl><p> där μ<sub>0</sub> = 4π × 10<sup>−7</sup> N A<sup>−2</sup>. I termer av relativ permeabilitet är <a href="/wiki/Susceptibilitet" class="mw-disambig" title="Susceptibilitet">susceptibiliteten</a><sup class="noprint Inline-Template"><a href="/wiki/Wikipedia:S%C3%A4rskiljning" title="Wikipedia:Särskiljning">[<span title="Det finns flera subjekt med detta artikelnamn (2020-10)"><i>särskiljning behövs</i></span>]</a></sup>:<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r51224235"></p><table class="metadata ambox ambox-content" style=""> <tbody><tr> <td class="ambox-image"> <div style="width:52px;"><span typeof="mw:File"><a href="/wiki/Fil:Ambox_outdated_serious.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Ambox_outdated_serious.svg/40px-Ambox_outdated_serious.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Ambox_outdated_serious.svg/60px-Ambox_outdated_serious.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Ambox_outdated_serious.svg/80px-Ambox_outdated_serious.svg.png 2x" data-file-width="620" data-file-height="620" /></a></span></div></td> <td class="ambox-text">Den här artikeln eller det här avsnittet <b>innehåller inaktuella uppgifter och behöver uppdateras</b>. <small>(2023-06)</small> <hr /> <span style="font-size:85%">Hjälp gärna Wikipedia att åtgärda problemet genom att <span class="plainlinks" title="tryck här för att redigera denna artikel"><a class="external text" href="https://sv.wikipedia.org/w/index.php?title=Permeabilitet&action=edit">redigera artikeln</a></span> eller diskutera saken på <a href="/wiki/Diskussion:Permeabilitet" title="Diskussion:Permeabilitet">diskussionssidan</a>.</span></td> </tr> </tbody></table> <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 \chi _{m}=\mu _{r}-1.}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>χ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>m</mi> </mrow> </msub> <mo>=</mo> <msub> <mi>μ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>r</mi> </mrow> </msub> <mo>−</mo> <mn>1.</mn> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \chi _{m}=\mu _{r}-1.}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4acd2581f2289959697e67429e408ffb063e9e16" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:13.254ex; height:2.676ex;" alt="{\displaystyle \chi _{m}=\mu _{r}-1.}"></span></dd></dl> <p>χ<sub>m</sub> är en dimensionslös kvantitet vilken ibland kallas för volymetrisk susceptibilitet. </p> <div class="mw-heading mw-heading2"><h2 id="Diamagnetism">Diamagnetism</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Permeabilitet&veaction=edit&section=3" title="Redigera avsnitt: Diamagnetism" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Permeabilitet&action=edit&section=3" title="Redigera avsnitts källkod: Diamagnetism"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Diamagnetism</b> är egenskapen hos ett objekt vilken ger upphov till ett magnetisk fält i motstående riktning jämför med ett externt <a href="/wiki/Magnetf%C3%A4lt" title="Magnetfält">magnetfält</a>, vilket i sin tur skapar en repulsiv kraft. Mer specifikt skapar ett externt magnetiskt fält en förändring hos elektronernas omloppshastighet runt deras respektive atomkärnor, vilket inducerar ett <a href="/wiki/Magnetiskt_dipolmoment" class="mw-redirect" title="Magnetiskt dipolmoment">magnetiskt dipolmoment</a> i motsatt riktning i förhållande till det externa magnetfältet. Diamagneter är material med en permeabilitet mindre än <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 \mu _{0}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>μ</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mu _{0}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/fe2fd9b8decb38a3cd158e7b6c0c6e2d987fefcc" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:2.456ex; height:2.176ex;" alt="{\displaystyle \mu _{0}}"></span> (en relativ permeabilitet mindre än 1). </p><p>Som följd är diamagnetism en form av <a href="/wiki/Magnetism" title="Magnetism">magnetism</a> som bara visar sig då det finns ett externt magnetfält. I de flesta material är effekten svag, men hos <a href="/wiki/Supraledare" title="Supraledare">supraledare</a> är effekten stor. </p> <div class="mw-heading mw-heading2"><h2 id="Paramagnetism">Paramagnetism</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Permeabilitet&veaction=edit&section=4" title="Redigera avsnitt: Paramagnetism" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Permeabilitet&action=edit&section=4" title="Redigera avsnitts källkod: Paramagnetism"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p><b>Paramagnetism</b> är en form av <a href="/wiki/Magnetism" title="Magnetism">magnetism</a> vilken bara visar sig då det finns ett externt magnetfält. Paramagnetiska material attraheras av magnetfält, de har därför en relativ permeabilitet större än 1 (eller en positiv <a href="/wiki/Susceptibilitet" class="mw-disambig" title="Susceptibilitet">susceptibilitet</a>)<sup class="noprint Inline-Template"><a href="/wiki/Wikipedia:S%C3%A4rskiljning" title="Wikipedia:Särskiljning">[<span title="Det finns flera subjekt med detta artikelnamn (2020-10)"><i>särskiljning behövs</i></span>]</a></sup>. Det magnetiska dipolmomentet är <i>linjärt</i> och typiskt ganska svagt. </p><p>Till skillnad från <a href="/wiki/Ferromagnetism" title="Ferromagnetism">ferromagneter</a>, har inte paramagneter någon kvarvarande magnetisering då det inte finns något externt magnetfält, eftersom <a href="/wiki/Termisk_r%C3%B6relse" class="mw-redirect" title="Termisk rörelse">termisk rörelse</a> ger upphov till att elektronernas spinn blir <i>godtyckligt orienterade</i> då pålagt magnetfält saknas. Därför blir magnetiseringen noll när det pålagda magnetfältet tas bort. Även då det finns ett magnetiskt fält blir den <i>inducerade</i> magnetiseringen liten eftersom bara en liten andel av elektronspinnen blir omorienterade i samma riktning av fältet. Denna andel är proportionell mot fältstyrkan. Attraktionen som ferromagneter upplever är <a href="/wiki/Icke-linj%C3%A4r" class="mw-redirect" title="Icke-linjär">icke-linjär</a> och mycket större, vilket gör att den är lätt att observera, ett exempel på detta är vanliga kylskåpsmagneter. </p> <div class="mw-heading mw-heading2"><h2 id="Värden_för_några_vanliga_material"><span id="V.C3.A4rden_f.C3.B6r_n.C3.A5gra_vanliga_material"></span>Värden för några vanliga material</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Permeabilitet&veaction=edit&section=5" title="Redigera avsnitt: Värden för några vanliga material" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Permeabilitet&action=edit&section=5" title="Redigera avsnitts källkod: Värden för några vanliga material"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Följande tabell skall användas försiktigt eftersom permeabilitet hos ferromagnetiska material kraftigt varierar med fältstyrka. Till exempel har 4 % Si stål en initial relativ permeabilitet (vid nära 0T) på 2000 och ett maximum på 35000<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-reference-link-bracket">[</span>5<span class="cite-reference-link-bracket">]</span></a></sup>. Den relativa permeabiliteten för vilket material som helst vid tillräckligt hög fältstyrka går mot 1. </p> <table class="wikitable sortable"> <caption>Magnetisk susceptibilitet och permeabilitet för utvalda material </caption> <tbody><tr> <th>Medium </th> <th class="unsortable">Susceptibilitet χ<sub>m</sub><br /> </th> <th class="unsortable">Permeabilitet μ [H/m] </th> <th data-sort-type="number">Relativ Permeabilitet μ/μ<sub>r</sub> </th> <th class="unsortable">Magnetiskt fältstyrka </th> <th class="unsortable">Frekvensmax </th></tr> <tr> <td><a href="/wiki/Metglas" title="Metglas">Metglas</a> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7000125000000000000♠</span>1.25</span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7006100000000000000♠</span>1<span style="margin-left:.25em;">000</span><span style="margin-left:.25em;">000</span></span><sup id="cite_ref-Metglas_6-0" class="reference"><a href="#cite_note-Metglas-6"><span class="cite-reference-link-bracket">[</span>6<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td>vid 0.5 T </td> <td>100 kHz </td></tr> <tr> <td><a href="/w/index.php?title=Nanoperm&action=edit&redlink=1" class="new" title="Nanoperm [inte skriven än]">Nanoperm</a> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6999100000000000000♠</span>10<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−2</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7004800000000000000♠</span>80<span style="margin-left:.25em;">000</span></span><sup id="cite_ref-Nanoperm_7-0" class="reference"><a href="#cite_note-Nanoperm-7"><span class="cite-reference-link-bracket">[</span>7<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td>vid 0.5 T </td> <td>10 kHz </td></tr> <tr> <td><a href="/wiki/Mymetall" title="Mymetall">Mymetall</a> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6998250000000000000♠</span>2.5<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−2</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7004200000000000000♠</span>20<span style="margin-left:.25em;">000</span></span><sup id="cite_ref-hyper_8-0" class="reference"><a href="#cite_note-hyper-8"><span class="cite-reference-link-bracket">[</span>8<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td>vid 0.002 T </td> <td> </td></tr> <tr> <td><a href="/wiki/Mymetall" title="Mymetall">Mymetall</a> </td> <td> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7004500000000000000♠</span>50<span style="margin-left:.25em;">000</span></span><sup id="cite_ref-nickal_9-0" class="reference"><a href="#cite_note-nickal-9"><span class="cite-reference-link-bracket">[</span>9<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Permalloy" title="Permalloy">Permalloy</a> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7003800000000000000♠</span>8000</span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6998100000000000000♠</span>1.0<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−2</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7003800000000000000♠</span>8000</span><sup id="cite_ref-hyper_8-1" class="reference"><a href="#cite_note-hyper-8"><span class="cite-reference-link-bracket">[</span>8<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td>vid 0.002 T </td> <td> </td></tr> <tr> <td><a href="/w/index.php?title=Elektriskt_st%C3%A5l&action=edit&redlink=1" class="new" title="Elektriskt stål [inte skriven än]">Elektriskt stål</a> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6997500000000000000♠</span>5.0<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−3</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7003400000000000000♠</span>4000</span><sup id="cite_ref-hyper_8-2" class="reference"><a href="#cite_note-hyper-8"><span class="cite-reference-link-bracket">[</span>8<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td>vid 0.002 T </td> <td> </td></tr> <tr> <td><a href="/wiki/Ferrit" class="mw-disambig" title="Ferrit">Ferrit</a><sup class="noprint Inline-Template"><a href="/wiki/Wikipedia:S%C3%A4rskiljning" title="Wikipedia:Särskiljning">[<span title="Det finns flera subjekt med detta artikelnamn (2018-09)"><i>särskiljning behövs</i></span>]</a></sup> (nickel zink) </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6995200000000000000♠</span>2.0<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−5</sup></span> – <span class="nowrap"><span style="display:none" class="sortkey">6996800000000000000♠</span>8.0<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−4</sup></span> </td> <td>16–640 </td> <td> </td> <td>100 kHz ~ 1 MHz<sup><a href="/wiki/Wikipedia:Introduktion_till_k%C3%A4llh%C3%A4nvisningar" title="Wikipedia:Introduktion till källhänvisningar">[<span title="Denna uppgift behöver källa (2012-02)"><i>källa behövs</i></span>]</a></sup> </td></tr> <tr> <td>Ferrit (mangan zinc) </td> <td> </td> <td>><span class="nowrap"><span style="display:none" class="sortkey">6996800000000000000♠</span>8.0<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−4</sup></span> </td> <td>640 (eller mer) </td> <td> </td> <td>100 kHz ~ 1 MHz </td></tr> <tr> <td><a href="/wiki/St%C3%A5l" title="Stål">Stål</a> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6996875000000000000♠</span>8.75<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−4</sup></span> </td> <td>100<sup id="cite_ref-hyper_8-3" class="reference"><a href="#cite_note-hyper-8"><span class="cite-reference-link-bracket">[</span>8<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td>vid 0.002 T </td> <td> </td></tr> <tr> <td><a href="/wiki/Nickel" title="Nickel">Nickel</a> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6996125000000000000♠</span>1.25<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−4</sup></span> </td> <td>100<sup id="cite_ref-hyper_8-4" class="reference"><a href="#cite_note-hyper-8"><span class="cite-reference-link-bracket">[</span>8<span class="cite-reference-link-bracket">]</span></a></sup> – 600 </td> <td>at 0.002 T </td> <td> </td></tr> <tr> <td><a href="/wiki/Neodymmagnet" title="Neodymmagnet">Neodymmagnet</a> </td> <td> </td> <td> </td> <td>1.05<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-reference-link-bracket">[</span>10<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Platina" title="Platina">Platina</a> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6994125697010000000♠</span>1.256<span style="margin-left:.25em;">9701</span><span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7000100026500000000♠</span>1.000<span style="margin-left:.25em;">265</span></span> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Aluminium" title="Aluminium">Aluminium</a> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6995222000000000000♠</span>2.22<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−5</sup></span><sup id="cite_ref-clarke_11-0" class="reference"><a href="#cite_note-clarke-11"><span class="cite-reference-link-bracket">[</span>11<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6994125666499999999♠</span>1.256<span style="margin-left:.25em;">6650</span><span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7000100002200000000♠</span>1.000<span style="margin-left:.25em;">022</span></span> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Tr%C3%A4" title="Trä">Trä</a> </td> <td> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7000100000043000000♠</span>1.000<span style="margin-left:.25em;">000</span><span style="margin-left:.25em;">43</span></span><sup id="cite_ref-clarke_11-1" class="reference"><a href="#cite_note-clarke-11"><span class="cite-reference-link-bracket">[</span>11<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td> </td> <td> </td></tr> <tr> <td>Luft </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6994125663750000000♠</span>1.256<span style="margin-left:.25em;">6375</span><span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7000100000037000000♠</span>1.000<span style="margin-left:.25em;">000</span><span style="margin-left:.25em;">37</span></span> <sup id="cite_ref-Cullity2008_12-0" class="reference"><a href="#cite_note-Cullity2008-12"><span class="cite-reference-link-bracket">[</span>12<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Betong" title="Betong">Betong</a> </td> <td> </td> <td> </td> <td>1<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-reference-link-bracket">[</span>13<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Vakuum" title="Vakuum">Vakuum</a> </td> <td>0 </td> <td>π<span class="nowrap"><span style="display:none" class="sortkey">6993400000000000000♠</span>4<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−7</sup></span> (μ<sub>0</sub>) </td> <td>1<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-reference-link-bracket">[</span>14<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/V%C3%A4te" title="Väte">Väte</a> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">3008780000000000000♠</span>−2.2<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−9</sup></span><sup id="cite_ref-clarke_11-2" class="reference"><a href="#cite_note-clarke-11"><span class="cite-reference-link-bracket">[</span>11<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6994125663710000000♠</span>1.256<span style="margin-left:.25em;">6371</span><span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7000100000000000000♠</span>1.000<span style="margin-left:.25em;">0000</span></span> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Teflon" title="Teflon">Teflon</a> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6994125670000000000♠</span>1.2567<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span><sup id="cite_ref-hyper_8-5" class="reference"><a href="#cite_note-hyper-8"><span class="cite-reference-link-bracket">[</span>8<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">7000100000000000000♠</span>1.0000</span> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Safir" title="Safir">Safir</a> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">3006790000000000000♠</span>−2.1<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−7</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6994125663680000000♠</span>1.256<span style="margin-left:.25em;">6368</span><span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6999999999760000000♠</span>0.999<span style="margin-left:.25em;">999</span><span style="margin-left:.25em;">76</span></span> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Koppar" title="Koppar">Koppar</a> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">3005360000000000000♠</span>−6.4<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span><br />or <span class="nowrap"><span style="display:none" class="sortkey">3005080000000000000♠</span>−9.2<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span><sup id="cite_ref-clarke_11-3" class="reference"><a href="#cite_note-clarke-11"><span class="cite-reference-link-bracket">[</span>11<span class="cite-reference-link-bracket">]</span></a></sup> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6994125662899999999♠</span>1.256<span style="margin-left:.25em;">6290</span><span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6999999994000000000♠</span>0.999<span style="margin-left:.25em;">994</span></span> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Vatten" title="Vatten">Vatten</a> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">3005200000000000000♠</span>−8.0<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6994125662699999999♠</span>1.256<span style="margin-left:.25em;">6270</span><span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−6</sup></span> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6999999992000000000♠</span>0.999<span style="margin-left:.25em;">992</span></span> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Vismut" title="Vismut">Vismut</a> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">3003834000000000000♠</span>−1.66<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−4</sup></span> </td> <td> </td> <td><span class="nowrap"><span style="display:none" class="sortkey">6999999834000000000♠</span>0.999<span style="margin-left:.25em;">834</span></span> </td> <td> </td> <td> </td></tr> <tr> <td><a href="/wiki/Supraledare" title="Supraledare">Supraledare</a> </td> <td>−1 </td> <td>0 </td> <td>0 </td> <td> </td> <td> </td></tr></tbody></table> <p><span class="mw-default-size" typeof="mw:File"><a href="/wiki/Fil:Permeability_of_ferromagnet_by_Zureks.svg" class="mw-file-description" title="Magnetiseringskurva för ferromagneter (och ferrimagneter) och motsvarande permeabilitet."><img alt="Magnetiseringskurva för ferromagneter (och ferrimagneter) och motsvarande permeabilitet." src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Permeability_of_ferromagnet_by_Zureks.svg/350px-Permeability_of_ferromagnet_by_Zureks.svg.png" decoding="async" width="350" height="270" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Permeability_of_ferromagnet_by_Zureks.svg/525px-Permeability_of_ferromagnet_by_Zureks.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3a/Permeability_of_ferromagnet_by_Zureks.svg/700px-Permeability_of_ferromagnet_by_Zureks.svg.png 2x" data-file-width="350" data-file-height="270" /></a></span> </p><p>Ett bra material för transformatorkärnor måste ha hög permeabilitet.<sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-reference-link-bracket">[</span>15<span class="cite-reference-link-bracket">]</span></a></sup> </p><p>För <b>passiv</b> <a href="/wiki/Maglev" class="mw-redirect" title="Maglev">Maglev</a> behövs en relativ permeabilitet på under 1 (detta korresponderar mot en negativ susceptibilitet). </p><p>Permeabiliten varierar med magnetisk fältstyrka. Värdena ovan är approximativa och endast giltiga för de nämnda magnetiska fälten. De är dessutom angivna för frekvensen noll; i praktiken ges permeabiliteten som en funktion av frekvensen. När frekvensen tas med i beräkningarna kan permeabiliteten bli ett <a href="/wiki/Komplext_tal" class="mw-redirect" title="Komplext tal">komplext tal</a>. </p><p> Tänk på att <a href="/wiki/Magnetiska_konstanten" title="Magnetiska konstanten">magnetiska konstanten</a> <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 \mu _{0}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>μ</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \mu _{0}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/fe2fd9b8decb38a3cd158e7b6c0c6e2d987fefcc" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:2.456ex; height:2.176ex;" alt="{\displaystyle \mu _{0}}"></span> har ett exakt värde i <a href="/wiki/SI-enhet" title="SI-enhet">SI-enheter</a> (dvs inga osäkerheter i värdet), eftersom definitionen av ampere fixerar värdet på 4π × 10<sup>−7</sup> H/m exakt. <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r51224235"></p><table class="metadata ambox ambox-content" style=""> <tbody><tr> <td class="ambox-image"> <div style="width:52px;"><span typeof="mw:File"><a href="/wiki/Fil:Ambox_outdated_serious.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Ambox_outdated_serious.svg/40px-Ambox_outdated_serious.svg.png" decoding="async" width="40" height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Ambox_outdated_serious.svg/60px-Ambox_outdated_serious.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8f/Ambox_outdated_serious.svg/80px-Ambox_outdated_serious.svg.png 2x" data-file-width="620" data-file-height="620" /></a></span></div></td> <td class="ambox-text">Den här artikeln eller det här avsnittet <b>innehåller inaktuella uppgifter och behöver uppdateras</b>. <small>(2023-06)</small> <hr /> <span style="font-size:85%">Hjälp gärna Wikipedia att åtgärda problemet genom att <span class="plainlinks" title="tryck här för att redigera denna artikel"><a class="external text" href="https://sv.wikipedia.org/w/index.php?title=Permeabilitet&action=edit">redigera artikeln</a></span> eller diskutera saken på <a href="/wiki/Diskussion:Permeabilitet" title="Diskussion:Permeabilitet">diskussionssidan</a>.</span></td> </tr> </tbody></table> <div class="mw-heading mw-heading2"><h2 id="Se_även"><span id="Se_.C3.A4ven"></span>Se även</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Permeabilitet&veaction=edit&section=6" title="Redigera avsnitt: Se även" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Permeabilitet&action=edit&section=6" title="Redigera avsnitts källkod: Se även"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Magnetisk_susceptibilitet" title="Magnetisk susceptibilitet">Magnetisk susceptibilitet</a></li> <li><a href="/wiki/Permittivitet" title="Permittivitet">Permittivitet</a></li> <li><a href="/wiki/Darcys_lag" title="Darcys lag">Darcys lag</a></li> <li><a href="/wiki/Hydraulisk_konduktivitet" class="mw-redirect" title="Hydraulisk konduktivitet">Hydraulisk konduktivitet</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Referenser">Referenser</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Permeabilitet&veaction=edit&section=7" title="Redigera avsnitt: Referenser" class="mw-editsection-visualeditor"><span>redigera</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Permeabilitet&action=edit&section=7" title="Redigera avsnitts källkod: Referenser"><span>redigera wikitext</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap mw-references-columns"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1">^</a> <span class="reference-text"><cite style="font-style:normal" class="web"><a rel="nofollow" class="external text" href="http://physics.nist.gov/cuu/Units/ampere.html">”The NIST reference on fundamental physical constants”</a>. Physics.nist.gov<span class="printonly">. <a rel="nofollow" class="external free" href="http://physics.nist.gov/cuu/Units/ampere.html">http://physics.nist.gov/cuu/Units/ampere.html</a></span><span class="reference-accessdate">. Läst 8 november 2011</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=The+NIST+reference+on+fundamental+physical+constants&rft.atitle=&rft.pub=Physics.nist.gov&rft_id=http%3A%2F%2Fphysics.nist.gov%2Fcuu%2FUnits%2Fampere.html&rfr_id=info:sid/en.wikipedia.org:Permeabilitet"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-2"><a href="#cite_ref-2">^</a> <span class="reference-text">Jackson (1975), p. 190</span> </li> <li id="cite_note-3"><a href="#cite_ref-3">^</a> <span class="reference-text"><cite style="font-style:normal" class="book" id="CITEREFJackson,_John_David1975">Jackson, John David (1975). <i><span>Classical Electrodynamics</span></i> (2nd ed.). New York: Wiley. <a href="/wiki/Special:Bokk%C3%A4llor/0-471-43132-X" title="Special:Bokkällor/0-471-43132-X">ISBN 0-471-43132-X</a></cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Classical+Electrodynamics&rft.aulast=Jackson%2C+John+David&rft.au=Jackson%2C+John+David&rft.date=1975&rft.edition=2nd+ed.&rft.place=New+York&rft.pub=Wiley&rft.isbn=0-471-43132-X&rfr_id=info:sid/en.wikipedia.org:Permeabilitet"><span style="display: none;"> </span></span> p. 182 eqn. (5.57)</span> </li> <li id="cite_note-4"><a href="#cite_ref-4">^</a> <span class="reference-text">Jackson (1975) p. 182 eqn. (5.56)</span> </li> <li id="cite_note-5"><a href="#cite_ref-5">^</a> <span class="reference-text">G.W.C. Kaye & T.H. Laby, Table of Physical and Chemical Constants, 14th ed, Longman</span> </li> <li id="cite_note-Metglas-6"><a href="#cite_ref-Metglas_6-0">^</a> <span class="reference-text"><cite style="font-style:normal" class="web"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20120206100947/http://www.metglas.com/products/page5_1_2_6.htm">”"Metglas Magnetic Alloy 2714A", ''Metglas''”</a>. Metglas.com. Arkiverad från <a rel="nofollow" class="external text" href="http://www.metglas.com/products/page5_1_2_6.htm">originalet</a> den 6 februari 2012<span class="printonly">. <a rel="nofollow" class="external free" href="https://web.archive.org/web/20120206100947/http://www.metglas.com/products/page5_1_2_6.htm">https://web.archive.org/web/20120206100947/http://www.metglas.com/products/page5_1_2_6.htm</a></span><span class="reference-accessdate">. Läst 8 november 2011</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=%22Metglas+Magnetic+Alloy+2714A%22%2C+%27%26%2339%3BMetglas%27%26%2339%3B&rft.atitle=&rft.pub=Metglas.com&rft_id=https%3A%2F%2Fweb.archive.org%2Fweb%2F20120206100947%2Fhttp%3A%2F%2Fwww.metglas.com%2Fproducts%2Fpage5_1_2_6.htm&rfr_id=info:sid/en.wikipedia.org:Permeabilitet"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-Nanoperm-7"><a href="#cite_ref-Nanoperm_7-0">^</a> <span class="reference-text"><cite style="font-style:normal" class="web"><a rel="nofollow" class="external text" href="http://www.magnetec.de/eng/pdf/werkstoffkennlinien_nano_e.pdf">”"Typical material properties of NANOPERM", ''Magnetec''”</a> (PDF)<span class="printonly">. <a rel="nofollow" class="external free" href="http://www.magnetec.de/eng/pdf/werkstoffkennlinien_nano_e.pdf">http://www.magnetec.de/eng/pdf/werkstoffkennlinien_nano_e.pdf</a></span><span class="reference-accessdate">. Läst 8 november 2011</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=%22Typical+material+properties+of+NANOPERM%22%2C+%27%26%2339%3BMagnetec%27%26%2339%3B&rft.atitle=&rft_id=http%3A%2F%2Fwww.magnetec.de%2Feng%2Fpdf%2Fwerkstoffkennlinien_nano_e.pdf&rfr_id=info:sid/en.wikipedia.org:Permeabilitet"><span style="display: none;"> </span></span><sup class="noprint Inline-Template"><a href="/wiki/Wikipedia:D%C3%B6da_l%C3%A4nkar" title="Wikipedia:Döda länkar">[<span title="Denna externa länk fungerar inte (2022-11)"><i>död länk</i></span>]</a></sup></span> </li> <li id="cite_note-hyper-8">^ [<a href="#cite_ref-hyper_8-0"><small>a</small></a> <a href="#cite_ref-hyper_8-1"><small>b</small></a> <a href="#cite_ref-hyper_8-2"><small>c</small></a> <a href="#cite_ref-hyper_8-3"><small>d</small></a> <a href="#cite_ref-hyper_8-4"><small>e</small></a> <a href="#cite_ref-hyper_8-5"><small>f</small></a>] <span class="reference-text"><cite style="font-style:normal" class="web"><a rel="nofollow" class="external text" href="http://hyperphysics.phy-astr.gsu.edu/hbase/solids/ferro.html">”"Relative Permeability", ''Hyperphysics''”</a>. Hyperphysics.phy-astr.gsu.edu<span class="printonly">. <a rel="nofollow" class="external free" href="http://hyperphysics.phy-astr.gsu.edu/hbase/solids/ferro.html">http://hyperphysics.phy-astr.gsu.edu/hbase/solids/ferro.html</a></span><span class="reference-accessdate">. Läst 8 november 2011</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=%22Relative+Permeability%22%2C+%27%26%2339%3BHyperphysics%27%26%2339%3B&rft.atitle=&rft.pub=Hyperphysics.phy-astr.gsu.edu&rft_id=http%3A%2F%2Fhyperphysics.phy-astr.gsu.edu%2Fhbase%2Fsolids%2Fferro.html&rfr_id=info:sid/en.wikipedia.org:Permeabilitet"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-nickal-9"><a href="#cite_ref-nickal_9-0">^</a> <span class="reference-text"><cite style="font-style:normal" class="web"><a rel="nofollow" class="external text" href="http://www.nickel-alloys.net/nickelalloys.html">”Nickel Alloys-Stainless Steels, Nickel Copper Alloys, Nickel Chromium Alloys, Low Expansion Alloys”</a>. Nickel-alloys.net<span class="printonly">. <a rel="nofollow" class="external free" href="http://www.nickel-alloys.net/nickelalloys.html">http://www.nickel-alloys.net/nickelalloys.html</a></span><span class="reference-accessdate">. Läst 8 november 2011</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=Nickel+Alloys-Stainless+Steels%2C+Nickel+Copper+Alloys%2C+Nickel+Chromium+Alloys%2C+Low+Expansion+Alloys&rft.atitle=&rft.pub=Nickel-alloys.net&rft_id=http%3A%2F%2Fwww.nickel-alloys.net%2Fnickelalloys.html&rfr_id=info:sid/en.wikipedia.org:Permeabilitet"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-10"><a href="#cite_ref-10">^</a> <span class="reference-text"><cite style="font-style:normal" class="book" id="CITEREFJuha_Pyrhönen,_Tapani_Jokinen,_Valéria_Hrabovcová2009">Juha Pyrhönen, Tapani Jokinen, Valéria Hrabovcová (2009). <i><a rel="nofollow" class="external text" href="http://books.google.com/?id=_y3LSh1XTJYC&pg=PT232">Design of Rotating Electrical Machines</a></i>. John Wiley and Sons. sid. 232. <a href="/wiki/Special:Bokk%C3%A4llor/0-470-69516-1" title="Special:Bokkällor/0-470-69516-1">ISBN 0-470-69516-1</a><span class="printonly">. <a rel="nofollow" class="external free" href="http://books.google.com/?id=_y3LSh1XTJYC&pg=PT232">http://books.google.com/?id=_y3LSh1XTJYC&pg=PT232</a></span></cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Design+of+Rotating+Electrical+Machines&rft.aulast=Juha+Pyrh%C3%B6nen%2C+Tapani+Jokinen%2C+Val%C3%A9ria+Hrabovcov%C3%A1&rft.au=Juha+Pyrh%C3%B6nen%2C+Tapani+Jokinen%2C+Val%C3%A9ria+Hrabovcov%C3%A1&rft.date=2009&rft.pages=sid.%26nbsp%3B232&rft.pub=John+Wiley+and+Sons&rft.isbn=0-470-69516-1&rft_id=http%3A%2F%2Fbooks.google.com%2F%3Fid%3D_y3LSh1XTJYC%26pg%3DPT232&rfr_id=info:sid/en.wikipedia.org:Permeabilitet"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-clarke-11">^ [<a href="#cite_ref-clarke_11-0"><small>a</small></a> <a href="#cite_ref-clarke_11-1"><small>b</small></a> <a href="#cite_ref-clarke_11-2"><small>c</small></a> <a href="#cite_ref-clarke_11-3"><small>d</small></a>] <span class="reference-text"><cite style="font-style:normal" class="web" id="CITEREFRichard_A._Clarke">Richard A. Clarke. <a rel="nofollow" class="external text" href="https://web.archive.org/web/20120603060037/http://info.ee.surrey.ac.uk/Workshop/advice/coils/mu/">”Clarke, R. ''Magnetic properties of materials'', surrey.ac.uk”</a>. Ee.surrey.ac.uk. Arkiverad från <a rel="nofollow" class="external text" href="http://www.ee.surrey.ac.uk/Workshop/advice/coils/mu/">originalet</a> den 3 juni 2012<span class="printonly">. <a rel="nofollow" class="external free" href="https://web.archive.org/web/20120603060037/http://info.ee.surrey.ac.uk/Workshop/advice/coils/mu/">https://web.archive.org/web/20120603060037/http://info.ee.surrey.ac.uk/Workshop/advice/coils/mu/</a></span><span class="reference-accessdate">. Läst 8 november 2011</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=Clarke%2C+R.+%27%26%2339%3BMagnetic+properties+of+materials%27%26%2339%3B%2C+surrey.ac.uk&rft.atitle=&rft.aulast=Richard+A.+Clarke&rft.au=Richard+A.+Clarke&rft.pub=Ee.surrey.ac.uk&rft_id=https%3A%2F%2Fweb.archive.org%2Fweb%2F20120603060037%2Fhttp%3A%2F%2Finfo.ee.surrey.ac.uk%2FWorkshop%2Fadvice%2Fcoils%2Fmu%2F&rfr_id=info:sid/en.wikipedia.org:Permeabilitet"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-Cullity2008-12"><a href="#cite_ref-Cullity2008_12-0">^</a> <span class="reference-text">B. D. Cullity and C. D. Graham (2008), Introduction to Magnetic Materials, 2nd edition, 568 pp., p.16</span> </li> <li id="cite_note-13"><a href="#cite_ref-13">^</a> <span class="reference-text"><cite style="font-style:normal" class="web" id="CITEREFNDT.net">NDT.net. <a rel="nofollow" class="external text" href="http://www.ndt.net/article/ndtce03/papers/v078/v078.htm">”Determination of dielectric properties of insitu concrete at radar frequencies”</a>. Ndt.net<span class="printonly">. <a rel="nofollow" class="external free" href="http://www.ndt.net/article/ndtce03/papers/v078/v078.htm">http://www.ndt.net/article/ndtce03/papers/v078/v078.htm</a></span><span class="reference-accessdate">. Läst 8 november 2011</span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=Determination+of+dielectric+properties+of+insitu+concrete+at+radar+frequencies&rft.atitle=&rft.aulast=NDT.net&rft.au=NDT.net&rft.pub=Ndt.net&rft_id=http%3A%2F%2Fwww.ndt.net%2Farticle%2Fndtce03%2Fpapers%2Fv078%2Fv078.htm&rfr_id=info:sid/en.wikipedia.org:Permeabilitet"><span style="display: none;"> </span></span></span> </li> <li id="cite_note-14"><a href="#cite_ref-14">^</a> <span class="reference-text">exactly, by definition</span> </li> <li id="cite_note-15"><a href="#cite_ref-15">^</a> <span class="reference-text"><cite style="font-style:normal" class="web" id="CITEREFDixon,_L_H2001">Dixon, L H (2001). <a rel="nofollow" class="external text" href="http://www.ti.com/lit/ml/slup124/slup124.pdf">”Magnetics Design 2 - Magnetic Core Characteristics”</a>. Texas Instruments<span class="printonly">. <a rel="nofollow" class="external free" href="http://www.ti.com/lit/ml/slup124/slup124.pdf">http://www.ti.com/lit/ml/slup124/slup124.pdf</a></span>.</cite><span class="Z3988" title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.btitle=Magnetics+Design+2+-+Magnetic+Core+Characteristics&rft.atitle=&rft.aulast=Dixon%2C+L+H&rft.au=Dixon%2C+L+H&rft.date=2001&rft.pub=Texas+Instruments&rft_id=http%3A%2F%2Fwww.ti.com%2Flit%2Fml%2Fslup124%2Fslup124.pdf&rfr_id=info:sid/en.wikipedia.org:Permeabilitet"><span style="display: none;"> </span></span></span> </li> </ol></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Hämtad från ”<a dir="ltr" href="https://sv.wikipedia.org/w/index.php?title=Permeabilitet&oldid=54180875">https://sv.wikipedia.org/w/index.php?title=Permeabilitet&oldid=54180875</a>”</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Wikipedia:Kategorier" title="Wikipedia:Kategorier">Kategori</a>: <ul><li><a href="/wiki/Kategori:Elektromagnetism" title="Kategori:Elektromagnetism">Elektromagnetism</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Dolda kategorier: <ul><li><a href="/wiki/Kategori:Artiklar_med_d%C3%B6da_externa_l%C3%A4nkar_2022-11" title="Kategori:Artiklar med döda externa länkar 2022-11">Artiklar med döda externa länkar 2022-11</a></li><li><a href="/wiki/Kategori:Alla_artiklar_med_d%C3%B6da_externa_l%C3%A4nkar" title="Kategori:Alla artiklar med döda externa länkar">Alla artiklar med döda externa länkar</a></li><li><a href="/wiki/Kategori:Ej_uppdaterad_2023-06" title="Kategori:Ej uppdaterad 2023-06">Ej uppdaterad 2023-06</a></li><li><a href="/wiki/Kategori:Ej_uppdaterad-samtliga" title="Kategori:Ej uppdaterad-samtliga">Ej uppdaterad-samtliga</a></li><li><a href="/wiki/Kategori:Artiklar_med_l%C3%A4nkar_som_beh%C3%B6ver_s%C3%A4rskiljas_2020-10" title="Kategori:Artiklar med länkar som behöver särskiljas 2020-10">Artiklar med länkar som behöver särskiljas 2020-10</a></li><li><a href="/wiki/Kategori:Alla_artiklar_med_l%C3%A4nkar_som_beh%C3%B6ver_s%C3%A4rskiljas" title="Kategori:Alla artiklar med länkar som behöver särskiljas">Alla artiklar med länkar som behöver särskiljas</a></li><li><a href="/wiki/Kategori:Artiklar_med_l%C3%A4nkar_som_beh%C3%B6ver_s%C3%A4rskiljas_2018-09" title="Kategori:Artiklar med länkar som behöver särskiljas 2018-09">Artiklar med länkar som behöver särskiljas 2018-09</a></li><li><a href="/wiki/Kategori:Alla_artiklar_som_beh%C3%B6ver_k%C3%A4llor" title="Kategori:Alla artiklar som behöver källor">Alla artiklar som behöver källor</a></li><li><a href="/wiki/Kategori:Alla_artiklar_som_beh%C3%B6ver_enstaka_k%C3%A4llor" title="Kategori:Alla artiklar som behöver enstaka källor">Alla artiklar som behöver enstaka källor</a></li><li><a href="/wiki/Kategori:Artiklar_som_beh%C3%B6ver_enstaka_k%C3%A4llor_2012-02" title="Kategori:Artiklar som behöver enstaka källor 2012-02">Artiklar som behöver enstaka källor 2012-02</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"> Sidan redigerades senast den 1 december 2023 kl. 23.11.</li> <li id="footer-info-copyright">Wikipedias text är tillgänglig under licensen <a rel="nofollow" class="external text" href="//creativecommons.org/licenses/by-sa/4.0/deed.sv">Creative Commons Erkännande-dela-lika 4.0 Unported</a>. 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