{"id":209095,"date":"2024-03-21T14:05:56","date_gmt":"2024-03-21T14:05:56","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e3%83%9d%e3%82%a2%e3%82%bd%e3%83%b3%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%84%8f%e5%91%b3%e3%80%81%e5%b0%8e%e5%87%ba%e6%96%b9%e6%b3%95%ef%bc%86%e4%bd%bf%e3%81%84%e6%96%b9\/"},"modified":"2024-05-17T15:07:10","modified_gmt":"2024-05-17T15:07:10","slug":"%e3%83%9d%e3%82%a2%e3%82%bd%e3%83%b3%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%84%8f%e5%91%b3%e3%80%81%e5%b0%8e%e5%87%ba%e6%96%b9%e6%b3%95%ef%bc%86%e4%bd%bf%e3%81%84%e6%96%b9","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%9d%e3%82%a2%e3%82%bd%e3%83%b3%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%84%8f%e5%91%b3%e3%80%81%e5%b0%8e%e5%87%ba%e6%96%b9%e6%b3%95%ef%bc%86%e4%bd%bf%e3%81%84%e6%96%b9\/","title":{"rendered":"\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f | \u610f\u5473\u3001\u5c0e\u51fa\u65b9\u6cd5\uff06\u4f7f\u3044\u65b9"},"content":{"rendered":"

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306b\u3064\u3044\u3066\u306e\u610f\u5473\u3001\u5c0e\u51fa\u65b9\u6cd5\u3001\u5fdc\u7528\u4f8b\u3092\u89e3\u8aac\u3002\u96fb\u5834\u3001\u96fb\u4f4d\u8a08\u7b97\u3084\u71b1\u4f1d\u5c0e\u3001\u91cd\u529b\u5834\u89e3\u6790\u306a\u3069\u7269\u7406\u73fe\u8c61\u3078\u306e\u9069\u7528\u65b9\u6cd5\u3082\u8aac\u660e\u3002<\/p>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f | \u610f\u5473\u3001\u5c0e\u51fa\u65b9\u6cd5\uff06\u4f7f\u3044\u65b9<\/h2>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306f\u3001\u96fb\u78c1\u6c17\u5b66\u3084\u4ed6\u306e\u591a\u304f\u306e\u7269\u7406\u5b66\u306e\u5206\u91ce\u3067\u983b\u7e41\u306b\u4f7f\u7528\u3055\u308c\u308b\u5fae\u5206\u65b9\u7a0b\u5f0f\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306e\u610f\u5473\u3001\u305d\u306e\u5c0e\u51fa\u65b9\u6cd5\u3001\u304a\u3088\u3073\u5177\u4f53\u7684\u306a\u5fdc\u7528\u4f8b\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306e\u610f\u5473<\/h2>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306f\u3001\u7a7a\u9593\u5185\u306e\u3042\u308b\u70b9\u306b\u304a\u3051\u308b\u30b9\u30ab\u30e9\u30fc\u5834 \\( \\phi \\) \u306e\u5024\u304c\u3001\u305d\u306e\u70b9\u3067\u306e\u30e9\u30d7\u30e9\u30b9\u6f14\u7b97\u5b50 \\( \\nabla^2 \\) \u306b\u7d50\u3073\u3064\u3044\u3066\u3044\u308b\u3053\u3068\u3092\u8868\u3057\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u8868\u3055\u308c\u307e\u3059:<\/p>\n

\\[\\nabla^2 \\phi = \\rho\\]<\/p>\n

\u3053\u3053\u3067\u3001\\( \\nabla^2 \\) \u306f\u30e9\u30d7\u30e9\u30b9\u6f14\u7b97\u5b50\u3092\u8868\u3057\u3001\\( \\rho \\) \u306f\u8a2d\u5b9a\u306b\u3088\u3063\u3066\u7570\u306a\u308b\u6e90\u3068\u306a\u308b\u9805\u3067\u3059\u3002\u96fb\u78c1\u6c17\u5b66\u306b\u304a\u3044\u3066\u306f\u3001\\(\\rho\\) \u306f\u96fb\u8377\u5bc6\u5ea6\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306e\u5c0e\u51fa\u65b9\u6cd5<\/h2>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306e\u5c0e\u51fa\u306f\u3001\u7269\u7406\u91cf\u306e\u5909\u5316\u3092\u8a18\u8ff0\u3059\u308b\u57fa\u672c\u7684\u306a\u65b9\u7a0b\u5f0f\u304b\u3089\u59cb\u307e\u308a\u307e\u3059\u3002\u96fb\u78c1\u6c17\u5b66\u306e\u5834\u5408\u3001\u30ac\u30a6\u30b9\u306e\u6cd5\u5247\u3092\u4f7f\u7528\u3057\u3066\u5c0e\u51fa\u3067\u304d\u307e\u3059\u3002\u30ac\u30a6\u30b9\u306e\u6cd5\u5247\u306f\u6b21\u306e\u3088\u3046\u306b\u793a\u3055\u308c\u307e\u3059:<\/p>\n

\\[\\nabla \\cdot \\mathbf{E} = \\frac{\\rho}{\\epsilon_0}\\]<\/p>\n

\u3053\u3053\u3067\u3001\\( \\mathbf{E} \\) \u306f\u96fb\u5834\u3001\\( \\rho \\) \u306f\u96fb\u8377\u5bc6\u5ea6\u3001\u305d\u3057\u3066\\( \\epsilon_0 \\) \u306f\u771f\u7a7a\u306e\u8a98\u96fb\u7387\u3067\u3059\u3002\u96fb\u5834 \\( (\\mathbf{E}) \\) \u3092\u30b9\u30ab\u30e9\u30fc\u5834 \\( (\\phi) \\) \u306e\u52fe\u914d\u52fe\u914d\u3067\u8868\u3059\u3068 \\( \\mathbf{E} = -\\nabla \\phi \\) \u3068\u306a\u308b\u305f\u3081\u3001\u6b21\u306e\u3088\u3046\u306b\u5909\u5f62\u3067\u304d\u307e\u3059:<\/p>\n

\\[\\nabla \\cdot (-\\nabla \\phi) = \\frac{\\rho}{\\epsilon_0}\\]<\/p>\n

\u6574\u7406\u3059\u308b\u3068\u3001\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u3092\u5f97\u307e\u3059:<\/p>\n

\\[\\nabla^2 \\phi = -\\frac{\\rho}{\\epsilon_0}\\]<\/p>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306e\u4f7f\u3044\u65b9<\/h2>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306f\u3001\u591a\u304f\u306e\u5b9f\u969b\u306e\u554f\u984c\u306b\u9069\u7528\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3044\u304f\u3064\u304b\u306e\u5177\u4f53\u4f8b\u3092\u793a\u3057\u307e\u3059:<\/p>\n

1. \u96fb\u5834\u3068\u96fb\u4f4d\u306e\u8a08\u7b97<\/h3>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u3092\u4f7f\u7528\u3057\u3066\u3001\u7a7a\u9593\u5185\u306e\u3042\u308b\u70b9\u306b\u304a\u3051\u308b\u96fb\u4f4d \\( \\phi \\) \u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u96fb\u8377\u5206\u5e03\u304c\u4e0e\u3048\u3089\u308c\u305f\u5834\u5408\u3001\u3053\u308c\u306b\u3088\u308a\u96fb\u5834\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

2. \u71b1\u4f1d\u5c0e\u306e\u89e3\u6790<\/h3>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306f\u6e29\u5ea6\u5206\u5e03\u3092\u6c42\u3081\u308b\u305f\u3081\u306b\u3082\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u71b1\u6e90\uff08\\(\\rho\\)\uff09\u304c\u5b58\u5728\u3059\u308b\u9818\u57df\u3067\u306e\u6e29\u5ea6\u5206\u5e03\u3092\u8a08\u7b97\u3059\u308b\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002<\/p>\n

3. \u91cd\u529b\u5834\u306e\u89e3\u6790<\/h3>\n

\u5929\u4f53\u7269\u7406\u5b66\u3067\u306f\u3001\u8cea\u91cf\u5bc6\u5ea6\u5206\u5e03\u3092\u77e5\u308b\u3053\u3068\u3067\u91cd\u529b\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u3092\u8a08\u7b97\u3057\u3001\u91cd\u529b\u5834\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u306f\u30cb\u30e5\u30fc\u30c8\u30f3\u306e\u91cd\u529b\u65b9\u7a0b\u5f0f\u3092\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306e\u5f62\u306b\u5909\u5f62\u3059\u308b\u3053\u3068\u3067\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n

\u307e\u3068\u3081<\/h2>\n

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306f\u3001\u7269\u7406\u5b66\u3084\u5de5\u5b66\u306e\u5e83\u7bc4\u306a\u5206\u91ce\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3059\u57fa\u672c\u7684\u306a\u65b9\u7a0b\u5f0f\u3067\u3059\u3002\u305d\u306e\u610f\u5473\u3001\u5c0e\u51fa\u65b9\u6cd5\u3001\u305d\u3057\u3066\u5177\u4f53\u7684\u306a\u5fdc\u7528\u4f8b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u69d8\u3005\u306a\u7269\u7406\u73fe\u8c61\u3092\u89e3\u6790\u3057\u3001\u89e3\u6c7a\u306b\u5f79\u7acb\u3066\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7c21\u6f54\u306b\u793a\u3057\u307e\u3057\u305f\u304c\u3001\u3055\u3089\u306b\u6df1\u304f\u5b66\u3076\u3053\u3068\u3067\u3001\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306e\u5fdc\u7528\u7bc4\u56f2\u306f\u3055\u3089\u306b\u5e83\u304c\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306b\u3064\u3044\u3066\u306e\u610f\u5473\u3001\u5c0e\u51fa\u65b9\u6cd5\u3001\u5fdc\u7528\u4f8b\u3092\u89e3\u8aac\u3002\u96fb\u5834\u3001\u96fb\u4f4d\u8a08\u7b97\u3084\u71b1\u4f1d\u5c0e\u3001\u91cd\u529b\u5834\u89e3\u6790\u306a\u3069\u7269\u7406\u73fe\u8c61\u3078\u306e\u9069\u7528\u65b9\u6cd5\u3082\u8aac\u660e\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[96],"tags":[97],"class_list":["post-209095","post","type-post","status-publish","format-standard","hentry","category-96","tag-97","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"\n\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f | \u610f\u5473\u3001\u5c0e\u51fa\u65b9\u6cd5\uff06\u4f7f\u3044\u65b9<\/title>\n<meta name=\"description\" content=\"\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f\u306b\u3064\u3044\u3066\u306e\u610f\u5473\u3001\u5c0e\u51fa\u65b9\u6cd5\u3001\u5fdc\u7528\u4f8b\u3092\u89e3\u8aac\u3002\u96fb\u5834\u3001\u96fb\u4f4d\u8a08\u7b97\u3084\u71b1\u4f1d\u5c0e\u3001\u91cd\u529b\u5834\u89e3\u6790\u306a\u3069\u7269\u7406\u73fe\u8c61\u3078\u306e\u9069\u7528\u65b9\u6cd5\u3082\u8aac\u660e\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%9d%e3%82%a2%e3%82%bd%e3%83%b3%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%84%8f%e5%91%b3%e3%80%81%e5%b0%8e%e5%87%ba%e6%96%b9%e6%b3%95%ef%bc%86%e4%bd%bf%e3%81%84%e6%96%b9\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u30dd\u30a2\u30bd\u30f3\u65b9\u7a0b\u5f0f | \u610f\u5473\u3001\u5c0e\u51fa\u65b9\u6cd5\uff06\u4f7f\u3044\u65b9\" 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