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</nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">电阻率</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="前往另一种语言写成的文章。55种语言可用" > <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-55" 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">55种语言</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Elektriese_resistiwiteit" title="Elektriese resistiwiteit – 南非荷兰语" lang="af" hreflang="af" data-title="Elektriese resistiwiteit" data-language-autonym="Afrikaans" data-language-local-name="南非荷兰语" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D9%85%D9%82%D8%A7%D9%88%D9%85%D9%8A%D8%A9" title="مقاومية – 阿拉伯语" lang="ar" hreflang="ar" data-title="مقاومية" data-language-autonym="العربية" data-language-local-name="阿拉伯语" 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/Resistivid%C3%A1" title="Resistividá – 阿斯图里亚斯语" lang="ast" hreflang="ast" data-title="Resistividá" data-language-autonym="Asturianu" data-language-local-name="阿斯图里亚斯语" 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%A3%D0%B4%D0%B7%D0%B5%D0%BB%D1%8C%D0%BD%D0%B0%D0%B5_%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D1%8B%D1%87%D0%BD%D0%B0%D0%B5_%D1%81%D1%83%D0%BF%D1%80%D0%B0%D1%86%D1%96%D1%9E%D0%BB%D0%B5%D0%BD%D0%BD%D0%B5" title="Удзельнае электрычнае супраціўленне – 白俄罗斯语" lang="be" hreflang="be" data-title="Удзельнае электрычнае супраціўленне" data-language-autonym="Беларуская" data-language-local-name="白俄罗斯语" 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%A1%D0%BF%D0%B5%D1%86%D0%B8%D1%84%D0%B8%D1%87%D0%BD%D0%BE_%D0%B5%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE_%D1%81%D1%8A%D0%BF%D1%80%D0%BE%D1%82%D0%B8%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5" title="Специфично електрическо съпротивление – 保加利亚语" lang="bg" hreflang="bg" data-title="Специфично електрическо съпротивление" data-language-autonym="Български" data-language-local-name="保加利亚语" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Resistivitat" title="Resistivitat – 加泰罗尼亚语" lang="ca" hreflang="ca" data-title="Resistivitat" data-language-autonym="Català" data-language-local-name="加泰罗尼亚语" 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/Rezistivita" title="Rezistivita – 捷克语" lang="cs" hreflang="cs" data-title="Rezistivita" data-language-autonym="Čeština" data-language-local-name="捷克语" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cv mw-list-item"><a href="https://cv.wikipedia.org/wiki/%D0%9F%D0%B0%D0%B9%D0%BB%D0%B0%D0%B2%D0%BB%D0%B0_%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%BE_%D1%85%D0%B8%D1%80%C4%95%C3%A7%D1%82%C4%83%D1%80%D1%83" title="Пайлавла электро хирĕçтăру – 楚瓦什语" lang="cv" hreflang="cv" data-title="Пайлавла электро хирĕçтăру" data-language-autonym="Чӑвашла" data-language-local-name="楚瓦什语" class="interlanguage-link-target"><span>Чӑвашла</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Gwrthedd" title="Gwrthedd – 威尔士语" lang="cy" hreflang="cy" data-title="Gwrthedd" data-language-autonym="Cymraeg" data-language-local-name="威尔士语" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Elektrisk_resistivitet" title="Elektrisk resistivitet – 丹麦语" lang="da" hreflang="da" data-title="Elektrisk resistivitet" data-language-autonym="Dansk" data-language-local-name="丹麦语" 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/Spezifischer_Widerstand" title="Spezifischer Widerstand – 德语" lang="de" hreflang="de" data-title="Spezifischer Widerstand" data-language-autonym="Deutsch" data-language-local-name="德语" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%95%CE%B9%CE%B4%CE%B9%CE%BA%CE%AE_%CE%B7%CE%BB%CE%B5%CE%BA%CF%84%CF%81%CE%B9%CE%BA%CE%AE_%CE%B1%CE%BD%CF%84%CE%AF%CF%83%CF%84%CE%B1%CF%83%CE%B7" title="Ειδική ηλεκτρική αντίσταση – 希腊语" lang="el" hreflang="el" data-title="Ειδική ηλεκτρική αντίσταση" data-language-autonym="Ελληνικά" data-language-local-name="希腊语" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en badge-Q70893996 mw-list-item" title=""><a href="https://en.wikipedia.org/wiki/Electrical_resistivity" title="Electrical resistivity – 英语" lang="en" hreflang="en" data-title="Electrical resistivity" data-language-autonym="English" data-language-local-name="英语" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Elektra_rezistivo" title="Elektra rezistivo – 世界语" lang="eo" hreflang="eo" data-title="Elektra rezistivo" data-language-autonym="Esperanto" data-language-local-name="世界语" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Resistividad" title="Resistividad – 西班牙语" lang="es" hreflang="es" data-title="Resistividad" data-language-autonym="Español" data-language-local-name="西班牙语" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Eritakistus" title="Eritakistus – 爱沙尼亚语" lang="et" hreflang="et" data-title="Eritakistus" data-language-autonym="Eesti" data-language-local-name="爱沙尼亚语" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Erresistibitate_elektriko" title="Erresistibitate elektriko – 巴斯克语" lang="eu" hreflang="eu" data-title="Erresistibitate elektriko" data-language-autonym="Euskara" data-language-local-name="巴斯克语" 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/%D9%85%D9%82%D8%A7%D9%88%D9%85%D8%AA%E2%80%8C%D9%88%DB%8C%DA%98%D9%87_%D9%88_%D8%B1%D8%B3%D8%A7%D9%86%D9%86%D8%AF%DA%AF%DB%8C_%D8%A7%D9%84%DA%A9%D8%AA%D8%B1%DB%8C%DA%A9%DB%8C" title="مقاومت‌ویژه و رسانندگی الکتریکی – 波斯语" lang="fa" hreflang="fa" data-title="مقاومت‌ویژه و رسانندگی الکتریکی" data-language-autonym="فارسی" data-language-local-name="波斯语" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Resistiivisyys" title="Resistiivisyys – 芬兰语" lang="fi" hreflang="fi" data-title="Resistiivisyys" data-language-autonym="Suomi" data-language-local-name="芬兰语" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/R%C3%A9sistivit%C3%A9" title="Résistivité – 法语" lang="fr" hreflang="fr" data-title="Résistivité" data-language-autonym="Français" data-language-local-name="法语" 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/Friotachas" title="Friotachas – 爱尔兰语" lang="ga" hreflang="ga" data-title="Friotachas" data-language-autonym="Gaeilge" data-language-local-name="爱尔兰语" 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/Resistividade" title="Resistividade – 加利西亚语" lang="gl" hreflang="gl" data-title="Resistividade" data-language-autonym="Galego" data-language-local-name="加利西亚语" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he badge-Q70893996 mw-list-item" title=""><a href="https://he.wikipedia.org/wiki/%D7%9E%D7%A7%D7%93%D7%9D_%D7%94%D7%AA%D7%A0%D7%92%D7%93%D7%95%D7%AA_%D7%97%D7%A9%D7%9E%D7%9C%D7%99%D7%AA" title="מקדם התנגדות חשמלית – 希伯来语" lang="he" hreflang="he" data-title="מקדם התנגדות חשמלית" data-language-autonym="עברית" data-language-local-name="希伯来语" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A4%A4%E0%A4%BF%E0%A4%B0%E0%A5%8B%E0%A4%A7%E0%A4%95%E0%A4%A4%E0%A4%BE" title="प्रतिरोधकता – 印地语" lang="hi" hreflang="hi" data-title="प्रतिरोधकता" data-language-autonym="हिन्दी" data-language-local-name="印地语" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Fajlagos_ellen%C3%A1ll%C3%A1s" title="Fajlagos ellenállás – 匈牙利语" lang="hu" hreflang="hu" data-title="Fajlagos ellenállás" data-language-autonym="Magyar" data-language-local-name="匈牙利语" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-id badge-Q70893996 mw-list-item" title=""><a href="https://id.wikipedia.org/wiki/Resistivitas_listrik" title="Resistivitas listrik – 印度尼西亚语" lang="id" hreflang="id" data-title="Resistivitas listrik" data-language-autonym="Bahasa Indonesia" data-language-local-name="印度尼西亚语" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Resistivit%C3%A0_elettrica" title="Resistività elettrica – 意大利语" lang="it" hreflang="it" data-title="Resistività elettrica" data-language-autonym="Italiano" data-language-local-name="意大利语" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E9%9B%BB%E6%B0%97%E6%8A%B5%E6%8A%97%E7%8E%87" title="電気抵抗率 – 日语" lang="ja" hreflang="ja" data-title="電気抵抗率" data-language-autonym="日本語" data-language-local-name="日语" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B9%84%EC%A0%80%ED%95%AD" title="비저항 – 韩语" lang="ko" hreflang="ko" data-title="비저항" data-language-autonym="한국어" data-language-local-name="韩语" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/%C4%AApatn%C4%93j%C4%81_pretest%C4%ABba" title="Īpatnējā pretestība – 拉脱维亚语" lang="lv" hreflang="lv" data-title="Īpatnējā pretestība" data-language-autonym="Latviešu" data-language-local-name="拉脱维亚语" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%BD%D0%B0_%D0%BE%D1%82%D0%BF%D0%BE%D1%80%D0%BD%D0%BE%D1%81%D1%82" title="Електрична отпорност – 马其顿语" lang="mk" hreflang="mk" data-title="Електрична отпорност" data-language-autonym="Македонски" data-language-local-name="马其顿语" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Soortelijke_weerstand" title="Soortelijke weerstand – 荷兰语" lang="nl" hreflang="nl" data-title="Soortelijke weerstand" data-language-autonym="Nederlands" data-language-local-name="荷兰语" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Resistivitet" title="Resistivitet – 挪威尼诺斯克语" lang="nn" hreflang="nn" data-title="Resistivitet" data-language-autonym="Norsk nynorsk" data-language-local-name="挪威尼诺斯克语" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Resistivitet" title="Resistivitet – 书面挪威语" lang="nb" hreflang="nb" data-title="Resistivitet" data-language-autonym="Norsk bokmål" data-language-local-name="书面挪威语" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pa mw-list-item"><a href="https://pa.wikipedia.org/wiki/%E0%A8%AC%E0%A8%BF%E0%A8%9C%E0%A8%B2%E0%A8%88_%E0%A8%AA%E0%A9%8D%E0%A8%B0%E0%A8%A4%E0%A8%BF%E0%A8%B0%E0%A9%8B%E0%A8%A7%E0%A8%95%E0%A8%A4%E0%A8%BE" title="ਬਿਜਲਈ ਪ੍ਰਤਿਰੋਧਕਤਾ – 旁遮普语" lang="pa" hreflang="pa" data-title="ਬਿਜਲਈ ਪ੍ਰਤਿਰੋਧਕਤਾ" data-language-autonym="ਪੰਜਾਬੀ" data-language-local-name="旁遮普语" class="interlanguage-link-target"><span>ਪੰਜਾਬੀ</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Rezystywno%C5%9B%C4%87" title="Rezystywność – 波兰语" lang="pl" hreflang="pl" data-title="Rezystywność" data-language-autonym="Polski" data-language-local-name="波兰语" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Arzistivit%C3%A0" title="Arzistività – 皮埃蒙特文" lang="pms" hreflang="pms" data-title="Arzistività" data-language-autonym="Piemontèis" data-language-local-name="皮埃蒙特文" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pnb mw-list-item"><a href="https://pnb.wikipedia.org/wiki/%D8%A8%D8%B1%D9%82%DB%8C_%D9%85%D8%B2%D8%A7%D8%AD%D9%85%D8%AA" title="برقی مزاحمت – Western Punjabi" lang="pnb" hreflang="pnb" data-title="برقی مزاحمت" data-language-autonym="پنجابی" data-language-local-name="Western Punjabi" class="interlanguage-link-target"><span>پنجابی</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Resistividade" title="Resistividade – 葡萄牙语" lang="pt" hreflang="pt" data-title="Resistividade" data-language-autonym="Português" data-language-local-name="葡萄牙语" 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/Rezistivitate_electric%C4%83" title="Rezistivitate electrică – 罗马尼亚语" lang="ro" hreflang="ro" data-title="Rezistivitate electrică" data-language-autonym="Română" data-language-local-name="罗马尼亚语" 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%A3%D0%B4%D0%B5%D0%BB%D1%8C%D0%BD%D0%BE%D0%B5_%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%B5%D1%81%D0%BA%D0%BE%D0%B5_%D1%81%D0%BE%D0%BF%D1%80%D0%BE%D1%82%D0%B8%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5" title="Удельное электрическое сопротивление – 俄语" lang="ru" hreflang="ru" data-title="Удельное электрическое сопротивление" data-language-autonym="Русский" data-language-local-name="俄语" 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/Electrical_resistivity" title="Electrical resistivity – Simple English" lang="en-simple" hreflang="en-simple" data-title="Electrical resistivity" 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/Mern%C3%BD_elektrick%C3%BD_odpor" title="Merný elektrický odpor – 斯洛伐克语" lang="sk" hreflang="sk" data-title="Merný elektrický odpor" data-language-autonym="Slovenčina" data-language-local-name="斯洛伐克语" 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/Specifi%C4%8Dna_upornost" title="Specifična upornost – 斯洛文尼亚语" lang="sl" hreflang="sl" data-title="Specifična upornost" data-language-autonym="Slovenščina" data-language-local-name="斯洛文尼亚语" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sn mw-list-item"><a href="https://sn.wikipedia.org/wiki/Kuperekera_magetsi" title="Kuperekera magetsi – 绍纳语" lang="sn" hreflang="sn" data-title="Kuperekera magetsi" data-language-autonym="ChiShona" data-language-local-name="绍纳语" class="interlanguage-link-target"><span>ChiShona</span></a></li><li class="interlanguage-link interwiki-sr badge-Q70893996 mw-list-item" title=""><a href="https://sr.wikipedia.org/wiki/%D0%95%D0%BB%D0%B5%D0%BA%D1%82%D1%80%D0%B8%D1%87%D0%BD%D0%B0_%D0%BE%D1%82%D0%BF%D0%BE%D1%80%D0%BD%D0%BE%D1%81%D1%82" title="Електрична отпорност – 塞尔维亚语" lang="sr" hreflang="sr" data-title="Електрична отпорност" data-language-autonym="Српски / srpski" data-language-local-name="塞尔维亚语" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Elektrisk_resistivitet" title="Elektrisk resistivitet – 瑞典语" lang="sv" hreflang="sv" data-title="Elektrisk resistivitet" data-language-autonym="Svenska" data-language-local-name="瑞典语" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Konduksiyong_elektrikal" title="Konduksiyong elektrikal – 他加禄语" lang="tl" hreflang="tl" data-title="Konduksiyong elektrikal" data-language-autonym="Tagalog" data-language-local-name="他加禄语" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/%C3%96zdiren%C3%A7" title="Özdirenç – 土耳其语" lang="tr" hreflang="tr" data-title="Özdirenç" data-language-autonym="Türkçe" data-language-local-name="土耳其语" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%A7%D0%B0%D0%B3%D1%8B%D1%88%D1%82%D1%8B%D1%80%D0%BC%D0%B0_%D1%8D%D0%BB%D0%B5%D0%BA%D1%82%D1%80_%D0%BA%D0%B0%D1%80%D1%88%D1%8B%D0%BB%D1%8B%D0%B3%D1%8B" title="Чагыштырма электр каршылыгы – 鞑靼语" lang="tt" hreflang="tt" data-title="Чагыштырма электр каршылыгы" data-language-autonym="Татарча / tatarça" data-language-local-name="鞑靼语" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%9F%D0%B8%D1%82%D0%BE%D0%BC%D0%B8%D0%B9_%D0%BE%D0%BF%D1%96%D1%80" title="Питомий опір – 乌克兰语" lang="uk" hreflang="uk" data-title="Питомий опір" data-language-autonym="Українська" data-language-local-name="乌克兰语" 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%D8%B2%D8%A7%D8%AD%D9%85%DB%8C%D8%AA" title="مزاحمیت – 乌尔都语" lang="ur" hreflang="ur" data-title="مزاحمیت" data-language-autonym="اردو" data-language-local-name="乌尔都语" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-vi badge-Q70893996 mw-list-item" title=""><a 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aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> <div id="mw-indicator-noteTA-c3d95ea2" class="mw-indicator"><div class="mw-parser-output"><span class="skin-invert" typeof="mw:File"><span title="本页使用了标题或全文手工转换"><img alt="本页使用了标题或全文手工转换" src="//upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Zh_conversion_icon_m.svg/35px-Zh_conversion_icon_m.svg.png" decoding="async" width="35" height="22" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Zh_conversion_icon_m.svg/53px-Zh_conversion_icon_m.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/c/cd/Zh_conversion_icon_m.svg/70px-Zh_conversion_icon_m.svg.png 2x" data-file-width="32" data-file-height="20" /></span></span></div></div> </div> <div id="siteSub" class="noprint">维基百科，自由的百科全书</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><span class="mw-redirectedfrom">（重定向自<a href="/w/index.php?title=%E9%9B%BB%E9%98%BB%E7%8E%87&redirect=no" class="mw-redirect" title="電阻率">電阻率</a>）</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="zh" dir="ltr"><div id="noteTA-c3d95ea2" class="noteTA"><div class="noteTA-local"><div data-noteta-code="zh-hans:米; zh-hk:米; zh-tw:公尺;"></div><div data-noteta-code="zh-hans:厘米; zh-hk:厘米; zh-tw:公分;"></div></div></div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Resistivity_geometry.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/68/Resistivity_geometry.png/200px-Resistivity_geometry.png" decoding="async" width="200" height="180" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/68/Resistivity_geometry.png/300px-Resistivity_geometry.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/68/Resistivity_geometry.png/400px-Resistivity_geometry.png 2x" data-file-width="471" data-file-height="424" /></a><figcaption>電阻物質的兩端接有導線。</figcaption></figure> <p><b>電阻率</b>（英語：<span lang="en">Resistivity</span>），又称<b>电阻系数</b>，是描述材料<a href="/wiki/%E5%AF%BC%E7%94%B5" class="mw-redirect" title="导电">导电</a>性能的物理量。 </p><p>电阻率在数值上等于单位长度、单位截面的某种物質的導電度]。电阻率与导体的长度、横截面积等因素无关，是导体材料本身的电学性质，由导体的材料决定，且与温度有关。 </p><p>电阻率在<a href="/wiki/%E5%9B%BD%E9%99%85%E5%8D%95%E4%BD%8D%E5%88%B6" title="国际单位制">国际单位制</a>的单位是Ω·m，读作欧姆米，简称欧米。常用单位为“歐姆·米”。 </p><p>电阻率较低的物质称为<a href="/wiki/%E5%AF%BC%E4%BD%93" class="mw-redirect" title="导体">导体</a>，常见导体主要为<a href="/wiki/%E9%87%91%E5%B1%AC" class="mw-redirect" title="金屬">金屬</a>，而自然界中導電性最佳的是<a href="/wiki/%E9%8A%80" title="銀">銀</a>。其他不易導電的物質如<a href="/wiki/%E7%8E%BB%E7%92%83" title="玻璃">玻璃</a>、<a href="/wiki/%E6%A9%A1%E8%86%A0" title="橡膠">橡膠</a>等，電阻率較高，一般稱為<a href="/wiki/%E7%B5%95%E7%B7%A3%E9%AB%94" title="絕緣體">絕緣體</a>。介于导体和绝缘体之间的物质（如<a href="/wiki/%E7%A1%85" title="硅">硅</a>）则称<a href="/wiki/%E5%8D%8A%E5%AF%BC%E4%BD%93" title="半导体">半导体</a>。 </p><p>電阻率的科學符號為 <b><a href="/wiki/%CE%A1" title="Ρ">ρ</a></b> 。 </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="电阻定律"><span id=".E7.94.B5.E9.98.BB.E5.AE.9A.E5.BE.8B"></span>电阻定律</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E7%94%B5%E9%98%BB%E7%8E%87&action=edit&section=1" title="编辑章节：电阻定律"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>对于一般物体，电阻<span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle R}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>R</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle R}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4b0bfb3769bf24d80e15374dc37b0441e2616e33" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.764ex; height:2.176ex;" alt="{\displaystyle R}"></span>，电阻率<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 \rho }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ρ</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \rho }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1f7d439671d1289b6a816e6af7a304be40608d64" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:1.202ex; height:2.176ex;" alt="{\displaystyle \rho }"></span>、长度 <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 l}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>l</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle l}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/829091f745070b9eb97a80244129025440a1cfac" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:0.693ex; height:2.176ex;" alt="{\displaystyle l}"></span> 与<a href="/wiki/%E6%88%AA%E9%9D%A2%E7%A9%8D" class="mw-redirect" title="截面積">截面積</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 A}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>A</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle A}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/7daff47fa58cdfd29dc333def748ff5fa4c923e3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.743ex; height:2.176ex;" alt="{\displaystyle A}"></span>之间的关系如下： </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle R=\rho {\frac {l}{A}}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>R</mi> <mo>=</mo> <mi>ρ</mi> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>l</mi> <mi>A</mi> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle R=\rho {\frac {l}{A}}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b70d983d9790924bfdd328f9dbf8506be2a85ef0" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; width:8.644ex; height:5.509ex;" alt="{\displaystyle R=\rho {\frac {l}{A}}}"></span> </p><p>在上式中， </p> <ul><li>電阻 <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle R}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>R</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle R}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4b0bfb3769bf24d80e15374dc37b0441e2616e33" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.764ex; height:2.176ex;" alt="{\displaystyle R}"></span> 單位為歐姆</li> <li>長度 <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 l}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>l</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle l}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/829091f745070b9eb97a80244129025440a1cfac" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:0.693ex; height:2.176ex;" alt="{\displaystyle l}"></span> 單位為公尺</li> <li>截面面積 <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 A}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>A</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle A}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/7daff47fa58cdfd29dc333def748ff5fa4c923e3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.743ex; height:2.176ex;" alt="{\displaystyle A}"></span> 單位為<a href="/wiki/%E5%B9%B3%E6%96%B9%E5%85%AC%E5%B0%BA" class="mw-redirect" title="平方公尺">平方公尺</a></li> <li>電阻率 <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 \rho }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ρ</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \rho }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1f7d439671d1289b6a816e6af7a304be40608d64" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:1.202ex; height:2.176ex;" alt="{\displaystyle \rho }"></span> 單位為歐姆·公尺</li></ul> <p>这个方程被称为电阻定律。<sup id="cite_ref-a_1-0" class="reference"><a href="#cite_note-a-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="与温度的关系"><span id=".E4.B8.8E.E6.B8.A9.E5.BA.A6.E7.9A.84.E5.85.B3.E7.B3.BB"></span>与温度的关系</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E7%94%B5%E9%98%BB%E7%8E%87&action=edit&section=2" title="编辑章节：与温度的关系"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>电阻率一般会随温度变化而变化。在温度变化不大时，电阻率<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 \rho }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ρ</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \rho }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1f7d439671d1289b6a816e6af7a304be40608d64" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:1.202ex; height:2.176ex;" alt="{\displaystyle \rho }"></span>与温度之间存在线性关系： </p><p><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \rho _{t}=\rho _{0}(1+\alpha t)}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>ρ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>t</mi> </mrow> </msub> <mo>=</mo> <msub> <mi>ρ</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </msub> <mo stretchy="false">(</mo> <mn>1</mn> <mo>+</mo> <mi>α</mi> <mi>t</mi> <mo stretchy="false">)</mo> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \rho _{t}=\rho _{0}(1+\alpha t)}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/4b75fbcb03b3cf9946b707afc5841da071b3b948" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:15.522ex; height:2.843ex;" alt="{\displaystyle \rho _{t}=\rho _{0}(1+\alpha t)}"></span> </p><p>其中 <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 \rho _{0}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>ρ</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>0</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \rho _{0}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d9c04a9d26b86af8c6205ba2a6287fd655b6b714" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:2.256ex; height:2.176ex;" alt="{\displaystyle \rho _{0}}"></span>是该材料在0<a href="/wiki/%E6%91%84%E6%B0%8F%E5%BA%A6" class="mw-redirect" title="摄氏度">摄氏度</a>时的电阻率， <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 \rho _{t}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>ρ</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>t</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \rho _{t}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/d1d393145553a30657afb0fca049fd29eeb260f8" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:2.028ex; height:2.176ex;" alt="{\displaystyle \rho _{t}}"></span>是<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 t}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>t</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle t}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/65658b7b223af9e1acc877d848888ecdb4466560" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:0.84ex; height:2.009ex;" alt="{\displaystyle t}"></span>摄氏度时的电阻率，<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 \alpha }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>α</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \alpha }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b79333175c8b3f0840bfb4ec41b8072c83ea88d3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.488ex; height:1.676ex;" alt="{\displaystyle \alpha }"></span>是电阻率的温度系数。 <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 \alpha }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>α</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \alpha }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b79333175c8b3f0840bfb4ec41b8072c83ea88d3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.488ex; height:1.676ex;" alt="{\displaystyle \alpha }"></span>在温度变化不大的范围内可以认为是常量。多数金属常温下的电阻率温度系数<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 \alpha }"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>α</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \alpha }</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b79333175c8b3f0840bfb4ec41b8072c83ea88d3" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.338ex; width:1.488ex; height:1.676ex;" alt="{\displaystyle \alpha }"></span>约为0.004。 <sup id="cite_ref-a_1-1" class="reference"><a href="#cite_note-a-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>然而，有的物质的电阻率随温度的升高而减小，如电解液、<a href="/wiki/%E5%8D%8A%E5%B0%8E%E9%AB%94" class="mw-redirect" title="半導體">半導體</a>。 </p> <div class="mw-heading mw-heading2"><h2 id="几种物质的电阻率"><span id=".E5.87.A0.E7.A7.8D.E7.89.A9.E8.B4.A8.E7.9A.84.E7.94.B5.E9.98.BB.E7.8E.87"></span>几种物质的电阻率</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E7%94%B5%E9%98%BB%E7%8E%87&action=edit&section=3" title="编辑章节：几种物质的电阻率"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable" border="1"> <tbody><tr> <th>物质</th> <th>電阻率 (Ωm)</th> <th>电阻温度係数（20 ℃<sup id="cite_ref-注一_2-0" class="reference"><a href="#cite_note-注一-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>） </th></tr> <tr> <td><a href="/wiki/%E7%9F%B3%E5%A2%A8%E7%83%AF" title="石墨烯">石墨烯</a></td> <td>1.00×10<sup>−8</sup></td> <td>-.0002 </td></tr> <tr> <td><a href="/wiki/%E9%8A%80" title="銀">銀</a></td> <td>1.59×10<sup>−8</sup></td> <td>.0038 </td></tr> <tr> <td><a href="/wiki/%E9%8A%85" class="mw-redirect" title="銅">銅</a></td> <td>1.7×10<sup>−8</sup></td> <td>.0039 </td></tr> <tr> <td><a href="/wiki/%E9%87%91" title="金">金</a></td> <td>2.44×10<sup>−8</sup></td> <td>.0034 </td></tr> <tr> <td><a href="/wiki/%E9%8B%81" class="mw-redirect" title="鋁">鋁</a></td> <td>2.82×10<sup>−8</sup></td> <td>.0039 </td></tr> <tr> <td><a href="/wiki/%E9%8E%A2" class="mw-redirect" title="鎢">鎢</a></td> <td>5.6×10<sup>−8</sup></td> <td>.0045 </td></tr> <tr> <td><a href="/wiki/%E9%BB%83%E9%8A%85" title="黃銅">黃銅</a></td> <td>8×10<sup>−8</sup></td> <td>.0015 </td></tr> <tr> <td><a href="/wiki/%E9%90%B5" class="mw-redirect" title="鐵">鐵</a></td> <td>1.0×10<sup>−7</sup></td> <td>.005 </td></tr> <tr> <td><a href="/wiki/%E9%89%91" class="mw-redirect" title="鉑">鉑</a></td> <td>1.1×10<sup>−7</sup></td> <td>.00392 </td></tr> <tr> <td><a href="/wiki/%E9%89%9B" class="mw-redirect" title="鉛">鉛</a></td> <td>2.2×10<sup>−7</sup></td> <td>.0039 </td></tr> <tr> <td style="white-space: nowrap"><a href="/w/index.php?title=%E9%8C%B3%E5%8A%A0%E5%AF%A7&action=edit&redlink=1" class="new" title="錳加寧（页面不存在）">錳加寧</a></td> <td>4.82×10<sup>−7</sup></td> <td>.000002 </td></tr> <tr> <td><a href="/wiki/%E5%BA%B7%E9%8A%85" title="康銅">康銅</a></td> <td>4.9×10<sup>−7</sup></td> <td> </td></tr> <tr> <td><a href="/wiki/%E6%B1%9E" title="汞">汞</a></td> <td>9.8×10<sup>−7</sup></td> <td>.0009 </td></tr> <tr> <td><a href="/wiki/%E9%8E%B3%E9%89%BB%E5%90%88%E9%87%91" title="鎳鉻合金">鎳鉻合金</a></td> <td>1.10×10<sup>−6</sup></td> <td>.0004 </td></tr> <tr> <td><a href="/wiki/%E7%84%A1%E5%AE%9A%E5%BD%A2%E7%A2%B3" class="mw-redirect" title="無定形碳">無定形碳</a></td> <td>5.0×10<sup>−4</sup>至8.0×10<sup>−4</sup></td> <td>-.0005 </td></tr> <tr> <td><a href="/wiki/%E9%8D%BA" class="mw-redirect" title="鍺">鍺</a></td> <td>4.6×10<sup>−1</sup></td> <td>-.048 </td></tr> <tr> <td><a href="/wiki/%E7%9F%BD" class="mw-redirect" title="矽">矽</a></td> <td>6.40×10<sup>2</sup></td> <td>-.075 </td></tr> <tr> <td><a href="/wiki/%E7%8E%BB%E7%92%83" title="玻璃">玻璃</a></td> <td style="white-space: nowrap">10<sup>10</sup> 至 10<sup>14</sup></td> <td>無 </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="参考与注释"><span id=".E5.8F.82.E8.80.83.E4.B8.8E.E6.B3.A8.E9.87.8A"></span>参考与注释</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=%E7%94%B5%E9%98%BB%E7%8E%87&action=edit&section=4" title="编辑章节：参考与注释"><span>编辑</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="reflist" style="list-style-type: decimal;"> <ol class="references"> <li id="cite_note-a-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-a_1-0"><sup><b>1.0</b></sup></a> <a href="#cite_ref-a_1-1"><sup><b>1.1</b></sup></a></span> <span class="reference-text"><cite class="citation book">赵志敏. 高中物理竞赛教程. 拓展篇. 复旦大学出版社. : P268. <a href="/wiki/Special:%E7%BD%91%E7%BB%9C%E4%B9%A6%E6%BA%90/978-7-309-08250-0" title="Special:网络书源/978-7-309-08250-0"><span title="国际标准书号">ISBN</span> 978-7-309-08250-0</a>.</cite><span title="ctx_ver=Z39.88-2004&rfr_id=info%3Asid%2Fzh.wikipedia.org%3A%E7%94%B5%E9%98%BB%E7%8E%87&rft.au=%E8%B5%B5%E5%BF%97%E6%95%8F&rft.btitle=%E9%AB%98%E4%B8%AD%E7%89%A9%E7%90%86%E7%AB%9E%E8%B5%9B%E6%95%99%E7%A8%8B.+%E6%8B%93%E5%B1%95%E7%AF%87&rft.genre=book&rft.isbn=978-7-309-08250-0&rft.pages=P268&rft.pub=%E5%A4%8D%E6%97%A6%E5%A4%A7%E5%AD%A6%E5%87%BA%E7%89%88%E7%A4%BE&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook" class="Z3988"><span style="display:none;"> </span></span></span> </li> <li id="cite_note-注一-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-注一_2-0">^</a></b></span> <span class="reference-text">電阻率及溫度係數皆和導體當時的溫度有關</span> </li> </ol></div> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r84265675">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist 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