{"id":26167,"date":"2023-01-23T14:40:29","date_gmt":"2023-01-23T06:40:29","guid":{"rendered":"http:\/\/www.qiusir.com\/?p=26167"},"modified":"2023-01-23T14:40:29","modified_gmt":"2023-01-23T06:40:29","slug":"ohm-law","status":"publish","type":"post","link":"https:\/\/www.qiusir.com\/?p=26167","title":{"rendered":"Ohm’ law"},"content":{"rendered":"

\u9ad8\u4e2d\u7684\u95ed\u5408\u7535\u8def\u6b27\u59c6\u5b9a\u5f8b$$I=\\frac{E}{R+r}$$\u76f8\u6bd4\u521d\u4e2d\u4e3b\u8981\u662f\u589e\u52a0\u4e86\u7535\u52a8\u52bf\uff0c\u81f3\u4e8e\u8003\u8651\u5185\u963b\u5bf9\u521d\u4e2d\u751f\u5728\u7406\u89e3\u4e0a\u5e76\u65e0\u5927\u788d\u3002\u5173\u4e8e\u7535\u963b\u7684\u5b9a\u4e49\u5f0f\u548c\u8868\u8fbe\u5f0f\u7684\u7406\u89e3\uff0c\u4ece\u6b27\u59c6\u5b9a\u5f8b\u5f97\u51fa\u7684\u7535\u963b\u8fd9\u6837\u5199\u66f4\u597d\uff1a$$R\\overset{\\underset{\\mathrm{def}}{}}{=}\\frac{U}{I}$$\uff08\u7535\u5bb9\u3001\u5bc6\u5ea6\u7b49\u5b9a\u4e49\u5f0f\u4e5f\u53ef\u53c2\u8003\uff09\uff0c\u90a3$$R=\\rho\\frac{l}{s}$$\u81ea\u7136\u5c31\u662f\u5b9a\u4e49\u5f0f\u4e86\u3002
\n

\"Ohm'<\/center>
\n\u6b27\u59c6\u5b9a\u5f8b\u7684\u5361\u901a\u8868\u73b0\u5f88\u5f62\u8c61\uff0c\u76f8\u8f83\u66b4\u8d70\u6f2b\u753b\u7684\u7248\u672c\uff0c\u524d\u9762\u7684\u7565\u6b63\u7edf\u4e00\u4e9b\uff0c\u751a\u81f3\u914d\u8272\u90fd\u6709\u4e09\u539f\u8272\u7684\u8003\u8651\u3002
\n
\n
\"Ohm'<\/center>
\n\u4e0b\u9762\u7684\u8fd9\u4e00\u5e45\u5f62\u8c61\u4e0a\u8fc7\u4e8e\u62df\u4eba\uff0c\u4f46\u5f88\u597d\u7a81\u51fa\u4e86\u7535\u538b\u7684\u7535\u52bf\u5dee\u672c\u8d28\uff08Voltage comes from volting from a height\uff09…Current (I) is measured in Amps (remember C.I.A.)\u8ba9\u6211\u60f3\u8d77\u4e86\u5224\u65ad\u5b89\u57f9\u529b\u7684F.B.I.
\n
\"Ohm'<\/center>
\n\u7535\u52a8\u52bf Electromotive Force \u8fc7\u53bb\u5e38\u7528\u5e0c\u814a\u5b57\u6bcd\u03b5(\u8b80\u4f5cep\u2019selon)\uff0c\u73b0\u5728\u6539\u7528\u4e86E\uff0c\u4e0d\u5c11\u8001\u5e08\u8fd8\u662f\u4fdd\u7559\u65e7\u7684\u4e60\u60ef\u3002
\n\u7535\u538bVoltage\u3001electric pressure \u6216 electric tension\u662f\u4e24\u70b9\u4e4b\u95f4\u7684\u7535\u52bf\u5dee\uff08electric potential difference\uff09
\n
\"Ohm'<\/center><\/p>\n

\"Ohm'<\/center>
\n
\"Ohm'<\/center>
\n
\"Ohm'<\/center><\/p>\n

\"Ohm'<\/center><\/p>\n

\"Ohm'<\/center><\/p>\n

\u4e5f\u9009\u4e86\u8fd9\u4e00\u5f20\u662f\u53cd\u886c\u7684\u8003\u8651\u3002
\n

\"Ohm'<\/center>
\n\u5361\u6587\u8fea\u8bb8\u66fe\u628a\u81ea\u5df1\u7684\u8eab\u4f53\u5f53\u505a\u68c0\u6d41\u8ba1…1781\u5e74\u5728\u7b14\u8bb0\u91cc\u8bb0\u5f55\u4e86\u7535\u6d41\u4e0e\u7535\u52a8\u52bf\u6210\u6b63\u6bd4\uff0c\u4f46\u4ed6\u6ca1\u6709\u628a\u8fd9\u4e00\u7ed3\u679c\u544a\u77e5\u4efb\u4f55\u79d1\u5b66\u5bb6\uff0c\u76f4\u5230\u9ea6\u514b\u65af\u97e61879\u5e74\u53d1\u73b0\u3002\u5f53\u7136\u5b66\u672f\u754c\u89c9\u5f97\u5361\u6587\u8fea\u8bb8\u7684\u4eea\u5668\u7b80\u964b\uff0c\u8eab\u4f53\u7684\u611f\u89c9\u4e5f\u5f88\u96be\u505a\u51fa\u7cbe\u786e\u6d4b\u91cf\uff0c\u4e0d\u8db3\u4ee5\u8bc1\u5b9e\u4e0a\u767e\u5e74\u540e\u53d1\u73b0\u7684\u6b27\u59c6\u5b9a\u5f8b\u3002\uff08\u5173\u4e8e\u4ea8\u5229\u00b7\u5361\u6587\u8fea\u8bb8\u6d4b\u91cf\u5730\u7403\u8d28\u91cf\uff0c\u4e5f\u5c31\u662f\u6d4b\u91cf\u5f15\u529b\u5e38\u6570\u7684\u626d\u79e4\u5b9e\u9a8c\u662f\u4e8e1797\u5e748\u67085\u65e5\u81f31798\u5e745\u6708\u5b8c\u6210\uff0c\u800c\u540c\u6837\u662f\u7528\u5230\u626d\u79e4\u7684\u5e93\u4ed1\u5b9a\u5f8b\uff0c\u662f1785\u5e74\u3002\uff09
\n
\"Ohm'<\/center>
\n\u4f18\u79c0\u7684\u5b9e\u9a8c\u8005\uff0c\u5fb7\u56fd\u4eba\u6b27\u59c6\u4e8e1827\u5e74\u53d1\u8868\u4e86\u6b27\u59c6\u5b9a\u5f8b\u3002\u4f5c\u4e3a\u5355\u4f4d\uff0c\u6b27\u59c6Ohm\u7528\u03a9\u66ff\u4ee3\uff0c\u800c\u5965\u65af\u7279Oersted\u5c31\u7528Oe\u4e86\u3002\u7535\u5b66\u5355\u4f4d\u7684\u8f6e\u76d8\u521b\u610f\u4e0d\u9519\u3002<\/p>\n

\u53c2\u8003
\n[?<\/a>]mammothmemory.net\/physics\/
\n[?<\/a>]circuitbasics.com\/ohms-law-power-and-energy
\n[?<\/a>]wikipedia.org\/<\/p>\n","protected":false},"excerpt":{"rendered":"

\u9ad8\u4e2d\u7684\u95ed\u5408\u7535\u8def\u6b27\u59c6\u5b9a\u5f8b$$I=\\frac{E}{R+r}$$\u76f8\u6bd4\u521d\u4e2d\u4e3b\u8981\u662f\u589e\u52a0\u4e86\u7535\u52a8\u52bf\uff0c\u81f3\u4e8e\u8003\u8651\u5185\u963b\u5bf9\u521d\u4e2d\u751f\u5728 … \u9605\u8bfb\u66f4\u591a<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[5],"tags":[247],"class_list":["post-26167","post","type-post","status-publish","format-standard","hentry","category-physics","tag-physics"],"_links":{"self":[{"href":"https:\/\/www.qiusir.com\/index.php?rest_route=\/wp\/v2\/posts\/26167","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qiusir.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.qiusir.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.qiusir.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.qiusir.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=26167"}],"version-history":[{"count":0,"href":"https:\/\/www.qiusir.com\/index.php?rest_route=\/wp\/v2\/posts\/26167\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.qiusir.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=26167"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.qiusir.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=26167"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.qiusir.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=26167"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}