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href="/wiki/%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%9C%E0%B7%80%E0%B7%9A%E0%B7%82%E0%B6%AB%E0%B6%BA" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="විකිපීඩියා ගවේෂණය [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>හොයන්න</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="විකිපීඩියා හොයන්න" aria-label="විකිපීඩියා හොයන්න" autocapitalize="sentences" title="විකිපීඩියා ගවේෂණය [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="විශේෂ:ගවේෂණය"> </div> <button class="cdx-button cdx-search-input__end-button">සොයන්න</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="පුද්ගලික මෙවලම්"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <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">Appearance</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_si.wikipedia.org&uselang=si" class=""><span>පරිත්‍යාග</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=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%9C%E0%B7%92%E0%B6%AB%E0%B7%94%E0%B6%B8_%E0%B6%AD%E0%B7%90%E0%B6%B1%E0%B7%93%E0%B6%B8%E0%B6%A7&returnto=%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%94%E0%B6%BD%E0%B7%92+%E0%B6%89%E0%B6%82%E0%B6%A2%E0%B7%92%E0%B6%B1%E0%B7%9A%E0%B6%BB%E0%B7%94+%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80%E0%B7%9A+%E0%B6%89%E0%B6%AD%E0%B7%92%E0%B7%84%E0%B7%8F%E0%B7%83%E0%B6%BA" title="ඔබ ගිණුමක් තනා පිවිසෙන්නේ නම් මැනවි; කෙසේ වුවත්, එය අනිවාර්ය නොවේ." class=""><span>ගිණුමක් තනන්න</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=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%B4%E0%B6%BB%E0%B7%92%E0%B7%81%E0%B7%93%E0%B6%BD%E0%B6%9A_%E0%B6%B4%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%80%E0%B7%92%E0%B7%82%E0%B7%8A%E0%B6%A7%E0%B6%BA&returnto=%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%94%E0%B6%BD%E0%B7%92+%E0%B6%89%E0%B6%82%E0%B6%A2%E0%B7%92%E0%B6%B1%E0%B7%9A%E0%B6%BB%E0%B7%94+%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80%E0%B7%9A+%E0%B6%89%E0%B6%AD%E0%B7%92%E0%B7%84%E0%B7%8F%E0%B7%83%E0%B6%BA" title="අඩවියට පිවිසීමට ඔබව දිරිගැන්වේ. එහෙත් පිවිසීම අනිවාර්ය නොවේ. [o]" accesskey="o" class=""><span>පිවිසෙන්න</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="More options" > <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="පුද්ගලික මෙවලම්" > <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">පුද්ගලික මෙවලම්</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <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_si.wikipedia.org&uselang=si"><span>පරිත්‍යාග</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%9C%E0%B7%92%E0%B6%AB%E0%B7%94%E0%B6%B8_%E0%B6%AD%E0%B7%90%E0%B6%B1%E0%B7%93%E0%B6%B8%E0%B6%A7&returnto=%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%94%E0%B6%BD%E0%B7%92+%E0%B6%89%E0%B6%82%E0%B6%A2%E0%B7%92%E0%B6%B1%E0%B7%9A%E0%B6%BB%E0%B7%94+%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80%E0%B7%9A+%E0%B6%89%E0%B6%AD%E0%B7%92%E0%B7%84%E0%B7%8F%E0%B7%83%E0%B6%BA" title="ඔබ ගිණුමක් තනා පිවිසෙන්නේ නම් මැනවි; කෙසේ වුවත්, එය අනිවාර්ය නොවේ."><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>ගිණුමක් තනන්න</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%B4%E0%B6%BB%E0%B7%92%E0%B7%81%E0%B7%93%E0%B6%BD%E0%B6%9A_%E0%B6%B4%E0%B7%8A%E2%80%8D%E0%B6%BB%E0%B7%80%E0%B7%92%E0%B7%82%E0%B7%8A%E0%B6%A7%E0%B6%BA&returnto=%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%94%E0%B6%BD%E0%B7%92+%E0%B6%89%E0%B6%82%E0%B6%A2%E0%B7%92%E0%B6%B1%E0%B7%9A%E0%B6%BB%E0%B7%94+%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80%E0%B7%9A+%E0%B6%89%E0%B6%AD%E0%B7%92%E0%B7%84%E0%B7%8F%E0%B7%83%E0%B6%BA" title="අඩවියට පිවිසීමට ඔබව දිරිගැන්වේ. එහෙත් පිවිසීම අනිවාර්ය නොවේ. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>පිවිසෙන්න</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"> Pages for logged out editors <a href="/wiki/%E0%B6%8B%E0%B6%AF%E0%B7%80%E0%B7%94:Introduction" aria-label="Learn more about editing"><span>learn more</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/%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%B8%E0%B6%9C%E0%B7%9A_%E0%B6%AF%E0%B7%8F%E0%B6%BA%E0%B6%9A%E0%B6%AD%E0%B7%8A%E0%B7%80%E0%B6%BA" title="A list of edits made from this IP address [y]" accesskey="y"><span>දායකත්වයන්</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:%E0%B6%B8%E0%B6%9C%E0%B7%9A_%E0%B7%83%E0%B7%8F%E0%B6%9A%E0%B6%A0%E0%B7%8A%E0%B6%A1%E0%B7%8F%E0%B7%80" title="මෙම අන්තර්ජාල ලිපිනයෙන් කර ඇති සංස්කරණයන් පිළිබඳ සාකච්ඡාව [n]" accesskey="n"><span>සාකච්ඡාව</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="Site"> <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="Contents" 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">Contents</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</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">Beginning</div> </a> </li> <li id="toc-පුරාතන_ප්‍රවර්ධන" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#පුරාතන_ප්‍රවර්ධන"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>පුරාතන ප්‍රවර්ධන</span> </div> </a> <ul id="toc-පුරාතන_ප්‍රවර්ධන-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-19වන_සියවසෙහි_ප්‍රවර්ධන" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#19වන_සියවසෙහි_ප්‍රවර්ධන"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>19වන සියවසෙහි ප්‍රවර්ධන</span> </div> </a> <ul id="toc-19වන_සියවසෙහි_ප්‍රවර්ධන-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="Contents" 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="Toggle the table of contents" > <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">Toggle the table of contents</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">විදුලි ඉංජිනේරු විද්‍යාවේ ඉතිහාසය</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="Go to an article in another language. Available in 9 languages" > <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-9" 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">9 languages</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/%D8%AA%D8%A7%D8%B1%D9%8A%D8%AE_%D8%A7%D9%84%D9%87%D9%86%D8%AF%D8%B3%D8%A9_%D8%A7%D9%84%D9%83%D9%87%D8%B1%D8%A8%D8%A7%D8%A6%D9%8A%D8%A9" title="تاريخ الهندسة الكهربائية – අරාබි" lang="ar" hreflang="ar" data-title="تاريخ الهندسة الكهربائية" data-language-autonym="العربية" data-language-local-name="අරාබි" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%A4%E0%A6%A1%E0%A6%BC%E0%A6%BF%E0%A7%8E_%E0%A6%AA%E0%A7%8D%E0%A6%B0%E0%A6%95%E0%A7%8C%E0%A6%B6%E0%A6%B2%E0%A7%87%E0%A6%B0_%E0%A6%87%E0%A6%A4%E0%A6%BF%E0%A6%B9%E0%A6%BE%E0%A6%B8" title="তড়িৎ প্রকৌশলের ইতিহাস – බෙංගාලි" lang="bn" hreflang="bn" data-title="তড়িৎ প্রকৌশলের ইতিহাস" data-language-autonym="বাংলা" data-language-local-name="බෙංගාලි" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/History_of_electrical_engineering" title="History of electrical engineering – ඉංග්‍රීසි" lang="en" hreflang="en" data-title="History of electrical engineering" data-language-autonym="English" data-language-local-name="ඉංග්‍රීසි" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%B5%E0%A4%BF%E0%A4%A6%E0%A5%8D%E0%A4%AF%E0%A5%81%E0%A4%A4_%E0%A4%87%E0%A4%82%E0%A4%9C%E0%A5%80%E0%A4%A8%E0%A4%BF%E0%A4%AF%E0%A4%B0%E0%A5%80_%E0%A4%95%E0%A4%BE_%E0%A4%87%E0%A4%A4%E0%A4%BF%E0%A4%B9%E0%A4%BE%E0%A4%B8" title="विद्युत इंजीनियरी का इतिहास – හින්දි" lang="hi" hreflang="hi" data-title="विद्युत इंजीनियरी का इतिहास" data-language-autonym="हिन्दी" data-language-local-name="හින්දි" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%AD%D0%BB%D0%B5%D0%BA%D1%82%D1%80_%D1%82%D0%B0%D1%80%D0%B8%D1%85%D1%8B" title="Электр тарихы – කසාඛ්" lang="kk" hreflang="kk" data-title="Электр тарихы" data-language-autonym="Қазақша" data-language-local-name="කසාඛ්" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Historia_elektrotechniki" title="Historia elektrotechniki – පෝලන්ත" lang="pl" hreflang="pl" data-title="Historia elektrotechniki" data-language-autonym="Polski" data-language-local-name="පෝලන්ත" 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/Hist%C3%B3ria_da_engenharia_el%C3%A9trica" title="História da engenharia elétrica – පෘතුගීසි" lang="pt" hreflang="pt" data-title="História da engenharia elétrica" data-language-autonym="Português" data-language-local-name="පෘතුගීසි" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%98%D1%81%D1%82%D0%BE%D1%80%D0%B8%D1%8F_%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE%D1%82%D0%B5%D1%85%D0%BD%D0%B8%D0%BA%D0%B8" title="История электротехники – රුසියානු" lang="ru" hreflang="ru" data-title="История электротехники" data-language-autonym="Русский" data-language-local-name="රුසියානු" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Elektrik_m%C3%BChendisli%C4%9Fi_tarihi" title="Elektrik mühendisliği tarihi – තුර්කි" lang="tr" hreflang="tr" data-title="Elektrik mühendisliği tarihi" data-language-autonym="Türkçe" data-language-local-name="තුර්කි" class="interlanguage-link-target"><span>Türkçe</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/Q2986470#sitelinks-wikipedia" title="අන්තර්භාෂාමය සබැඳි සංස්කරණය කරන්න" class="wbc-editpage">සබැඳි සංස්කරණය කරන්න</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="නාම අවකාශ"> <div 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href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:QrCode&url=https%3A%2F%2Fsi.wikipedia.org%2Fwiki%2F%25E0%25B7%2580%25E0%25B7%2592%25E0%25B6%25AF%25E0%25B7%2594%25E0%25B6%25BD%25E0%25B7%2592_%25E0%25B6%2589%25E0%25B6%2582%25E0%25B6%25A2%25E0%25B7%2592%25E0%25B6%25B1%25E0%25B7%259A%25E0%25B6%25BB%25E0%25B7%2594_%25E0%25B7%2580%25E0%25B7%2592%25E0%25B6%25AF%25E0%25B7%258A%25E2%2580%258D%25E0%25B6%25BA%25E0%25B7%258F%25E0%25B7%2580%25E0%25B7%259A_%25E0%25B6%2589%25E0%25B6%25AD%25E0%25B7%2592%25E0%25B7%2584%25E0%25B7%258F%25E0%25B7%2583%25E0%25B6%25BA"><span>Download QR code</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"> මුද්‍රණය/නිර්යාත කෙරුම </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=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:Book&bookcmd=book_creator&referer=%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%94%E0%B6%BD%E0%B7%92+%E0%B6%89%E0%B6%82%E0%B6%A2%E0%B7%92%E0%B6%B1%E0%B7%9A%E0%B6%BB%E0%B7%94+%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80%E0%B7%9A+%E0%B6%89%E0%B6%AD%E0%B7%92%E0%B7%84%E0%B7%8F%E0%B7%83%E0%B6%BA"><span>පොතක් නිර්මාණය කරන්න</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B7%81%E0%B7%9A%E0%B7%82:DownloadAsPdf&page=%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%94%E0%B6%BD%E0%B7%92_%E0%B6%89%E0%B6%82%E0%B6%A2%E0%B7%92%E0%B6%B1%E0%B7%9A%E0%B6%BB%E0%B7%94_%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80%E0%B7%9A_%E0%B6%89%E0%B6%AD%E0%B7%92%E0%B7%84%E0%B7%8F%E0%B7%83%E0%B6%BA&action=show-download-screen"><span>PDF ලෙස බාගතකරන්න</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%94%E0%B6%BD%E0%B7%92_%E0%B6%89%E0%B6%82%E0%B6%A2%E0%B7%92%E0%B6%B1%E0%B7%9A%E0%B6%BB%E0%B7%94_%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80%E0%B7%9A_%E0%B6%89%E0%B6%AD%E0%B7%92%E0%B7%84%E0%B7%8F%E0%B7%83%E0%B6%BA&printable=yes" title="මෙම පිටුවෙහි මුද්‍රිත අනුවාදය [p]" accesskey="p"><span>මුද්‍රණ ආකෘතිය</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"> වෙනත් ව්‍යාපෘති තුල </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:History_of_electrical_engineering" hreflang="en"><span>විකිමාධ්‍ය කොමන්ස්</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a 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එක් කර ඇති මාතෘකා අතර <a href="/wiki/%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%94%E0%B6%BD%E0%B7%92_%E0%B6%89%E0%B6%82%E0%B6%A2%E0%B7%92%E0%B6%B1%E0%B7%9A%E0%B6%BB%E0%B7%94_%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80" title="විදුලි ඉංජිනේරු විද්‍යාව">විදුලි ඉංජිනේරු විද්‍යා</a> වෘත්තියෙහි සාමාන්‍ය ප්‍රවර්ධනය හා එහි සංගණ්‍ය පුද්ගලයයන්ද වෙති. </p> <div class="mw-heading mw-heading2"><h2 id="පුරාතන_ප්‍රවර්ධන"><span id=".E0.B6.B4.E0.B7.94.E0.B6.BB.E0.B7.8F.E0.B6.AD.E0.B6.B1_.E0.B6.B4.E0.B7.8A.E2.80.8D.E0.B6.BB.E0.B7.80.E0.B6.BB.E0.B7.8A.E0.B6.B0.E0.B6.B1"></span>පුරාතන ප්‍රවර්ධන</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%94%E0%B6%BD%E0%B7%92_%E0%B6%89%E0%B6%82%E0%B6%A2%E0%B7%92%E0%B6%B1%E0%B7%9A%E0%B6%BB%E0%B7%94_%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80%E0%B7%9A_%E0%B6%89%E0%B6%AD%E0%B7%92%E0%B7%84%E0%B7%8F%E0%B7%83%E0%B6%BA&action=edit&section=1" title="ඡේදය සංස්කරණය: පුරාතන ප්‍රවර්ධන"><span>සංස්කරණය</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading2"><h2 id="19වන_සියවසෙහි_ප්‍රවර්ධන"><span id="19.E0.B7.80.E0.B6.B1_.E0.B7.83.E0.B7.92.E0.B6.BA.E0.B7.80.E0.B7.83.E0.B7.99.E0.B7.84.E0.B7.92_.E0.B6.B4.E0.B7.8A.E2.80.8D.E0.B6.BB.E0.B7.80.E0.B6.BB.E0.B7.8A.E0.B6.B0.E0.B6.B1"></span>19වන සියවසෙහි ප්‍රවර්ධන</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%94%E0%B6%BD%E0%B7%92_%E0%B6%89%E0%B6%82%E0%B6%A2%E0%B7%92%E0%B6%B1%E0%B7%9A%E0%B6%BB%E0%B7%94_%E0%B7%80%E0%B7%92%E0%B6%AF%E0%B7%8A%E2%80%8D%E0%B6%BA%E0%B7%8F%E0%B7%80%E0%B7%9A_%E0%B6%89%E0%B6%AD%E0%B7%92%E0%B7%84%E0%B7%8F%E0%B7%83%E0%B6%BA&action=edit&section=2" title="ඡේදය සංස්කරණය: 19වන සියවසෙහි ප්‍රවර්ධන"><span>සංස්කරණය</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-left" typeof="mw:File/Thumb"><a href="/wiki/%E0%B6%9C%E0%B7%9C%E0%B6%B1%E0%B7%94%E0%B7%80:Faraday.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/91/Faraday.jpg/150px-Faraday.jpg" decoding="async" width="150" height="220" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/91/Faraday.jpg/225px-Faraday.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/91/Faraday.jpg/300px-Faraday.jpg 2x" data-file-width="328" data-file-height="480" /></a><figcaption>මයිකල් ෆැරඩේ, <a href="/w/index.php?title=%E0%B6%AD%E0%B7%9D%E0%B6%B8%E0%B7%83%E0%B7%8A_%E0%B7%86%E0%B7%92%E0%B6%BD%E0%B7%92%E0%B7%86%E0%B7%8A%E0%B7%83%E0%B7%8A&action=edit&redlink=1" class="new" title="තෝමස් ෆිලිෆ්ස් (පිටුව නොපවතියි)">තෝමස් ෆිලිෆ්ස්</a> 1841-1842 ගණන් විසින් නිර්මිත ආලේඛයකින් ගත් සුළු කොටසකි<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></figcaption></figure> <p><br /> </p> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external autonumber" href="http://www.npg.org.uk/live/search/portrait.asp?mkey=mw02170">[1]</a> National Portrait gallery NPG 269</span> </li> </ol></div>    </div><noscript><img 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