{"id":213759,"date":"2024-10-22T22:57:40","date_gmt":"2024-10-22T22:57:40","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/?p=213759"},"modified":"2024-10-22T22:57:40","modified_gmt":"2024-10-22T22:57:40","slug":"%e3%82%b3%e3%83%b3%e3%83%87%e3%83%b3%e3%82%b5%e3%81%ae%e5%bd%a2%e7%8a%b6%e3%81%af%e3%81%9d%e3%81%ae%e5%ae%b9%e9%87%8f%e3%81%ab%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e5%bd%b1%e9%9f%bf%e3%81%99","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%82%b3%e3%83%b3%e3%83%87%e3%83%b3%e3%82%b5%e3%81%ae%e5%bd%a2%e7%8a%b6%e3%81%af%e3%81%9d%e3%81%ae%e5%ae%b9%e9%87%8f%e3%81%ab%e3%81%a9%e3%81%ae%e3%82%88%e3%81%86%e3%81%ab%e5%bd%b1%e9%9f%bf%e3%81%99\/","title":{"rendered":"\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u5f62\u72b6\u306f\u305d\u306e\u5bb9\u91cf\u306b\u3069\u306e\u3088\u3046\u306b\u5f71\u97ff\u3059\u308b\u306e\u304b\uff1f"},"content":{"rendered":"<p class=\"sidekick\">\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u5f62\u72b6\u304c\u305d\u306e\u5bb9\u91cf\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u57fa\u672c\u7684\u306a\u7269\u7406\u6cd5\u5247\u304b\u3089\u5177\u4f53\u4f8b\u307e\u3067\u3001\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3057\u3084\u3059\u3044\u5185\u5bb9\u3002<\/p>\n<h2>\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u5f62\u72b6\u306f\u305d\u306e\u5bb9\u91cf\u306b\u3069\u306e\u3088\u3046\u306b\u5f71\u97ff\u3059\u308b\u306e\u304b\uff1f<\/h2>\n<p>\u30b3\u30f3\u30c7\u30f3\u30b5\u306f\u3001\u96fb\u6c17\u30a8\u30cd\u30eb\u30ae\u30fc\u3092\u4e00\u6642\u7684\u306b\u84c4\u3048\u308b\u305f\u3081\u306e\u91cd\u8981\u306a\u96fb\u5b50\u90e8\u54c1\u3067\u3059\u3002\u305d\u306e\u5bb9\u91cf\uff08\u30ad\u30e3\u30d1\u30b7\u30bf\u30f3\u30b9\uff09\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u8981\u56e0\u306b\u3088\u3063\u3066\u6c7a\u307e\u308a\u307e\u3059\u304c\u3001\u305d\u306e\u4e2d\u3067\u3082\u5f62\u72b6\u304c\u975e\u5e38\u306b\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u307e\u3059\u3002\u4eca\u56de\u306f\u3001\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u5f62\u72b6\u304c\u305d\u306e\u5bb9\u91cf\u306b\u3069\u306e\u3088\u3046\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u306e\u304b\u306b\u3064\u3044\u3066\u8a73\u3057\u304f\u898b\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u57fa\u672c\u7684\u306a\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u69cb\u9020<\/h2>\n<p>\u30b3\u30f3\u30c7\u30f3\u30b5\u306f\u3001\u4e00\u822c\u7684\u306b2\u3064\u306e\u5c0e\u4f53\u677f\uff08\u96fb\u6975\uff09\u304c\u7d76\u7e01\u4f53\uff08\u8a98\u96fb\u4f53\uff09\u3092\u631f\u3093\u3060\u69cb\u9020\u3092\u3057\u3066\u3044\u307e\u3059\u3002\u5bb9\u91cf \\(C\\) \u306f\u6b21\u306e\u3088\u3046\u306a\u5f0f\u3067\u8868\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>\nC = \\(\\frac{\\varepsilon A}{d}\\)\n<\/p>\n<p>\u3053\u3053\u3067\u3001<\/p>\n<ul>\n<li>\\(\\varepsilon\\) \u306f\u8a98\u96fb\u4f53\u306e\u8a98\u96fb\u7387<\/li>\n<li>\\(A\\) \u306f\u5c0e\u4f53\u677f\u306e\u9762\u7a4d<\/li>\n<li>\\(d\\) \u306f\u5c0e\u4f53\u677f\u9593\u306e\u8ddd\u96e2<\/li>\n<\/ul>\n<h2>\u5e73\u884c\u677f\u30b3\u30f3\u30c7\u30f3\u30b5<\/h2>\n<p>\u6700\u3082\u4e00\u822c\u7684\u306a\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u5f62\u72b6\u3067\u3042\u308b\u5e73\u884c\u677f\u30b3\u30f3\u30c7\u30f3\u30b5\u3067\u306f\u3001\u5bb9\u91cf\u306f\u6b21\u306e\u5f0f\u3067\u6c42\u3081\u3089\u308c\u307e\u3059\uff1a<\/p>\n<p>\nC = \\(\\frac{\\varepsilon A}{d}\\)\n<\/p>\n<p>\u5e73\u884c\u677f\u30b3\u30f3\u30c7\u30f3\u30b5\u306b\u304a\u3044\u3066\u3001<\/p>\n<ul>\n<li>\u5c0e\u4f53\u677f\u306e\u9762\u7a4d \\(A\\) \u3092\u5927\u304d\u304f\u3059\u308b\u3068\u5bb9\u91cf\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/li>\n<li>\u5c0e\u4f53\u677f\u9593\u306e\u8ddd\u96e2 \\(d\\) \u3092\u5c0f\u3055\u304f\u3059\u308b\u3068\u5bb9\u91cf\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u5186\u7b52\u5f62\u30b3\u30f3\u30c7\u30f3\u30b5<\/h2>\n<p>\u5186\u7b52\u5f62\u30b3\u30f3\u30c7\u30f3\u30b5\u3067\u306f\u3001\u5185\u5074\u3068\u5916\u5074\u306e\u5186\u7b52\u304c\u5171\u8ef8\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u5bb9\u91cf\u306f\u6b21\u306e\u5f0f\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>\nC = \\(\\frac{2 \\pi \\varepsilon L}{\\ln(\\frac{r2}{r1})}\\)\n<\/p>\n<p>\u3053\u3053\u3067\u3001<\/p>\n<ul>\n<li>\\(L\\) \u306f\u5186\u7b52\u306e\u9577\u3055<\/li>\n<li>\\(r1\\) \u306f\u5185\u5074\u306e\u5186\u7b52\u306e\u534a\u5f84<\/li>\n<li>\\(r2\\) \u306f\u5916\u5074\u306e\u5186\u7b52\u306e\u534a\u5f84<\/li>\n<\/ul>\n<p>\u5186\u7b52\u5f62\u30b3\u30f3\u30c7\u30f3\u30b5\u306b\u304a\u3044\u3066\u3001<\/p>\n<ul>\n<li>\\(r1\\) \u3068 \\(r2\\) \u306e\u6bd4\u3092\u5927\u304d\u304f\u3059\u308b\u3068\u5bb9\u91cf\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/li>\n<li>\\(L\\) \u3092\u9577\u304f\u3059\u308b\u3068\u5bb9\u91cf\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u7403\u5f62\u30b3\u30f3\u30c7\u30f3\u30b5<\/h2>\n<p>\u7403\u5f62\u30b3\u30f3\u30c7\u30f3\u30b5\u306f\u3001\u5185\u7403\u3068\u5916\u7403\u306e\u9593\u306b\u7d76\u7e01\u4f53\u304c\u3042\u308b\u69cb\u9020\u3067\u3059\u3002\u5bb9\u91cf\u306f\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>\nC = \\(\\frac{4 \\pi \\varepsilon r1 r2}{r2 &#8211; r1}\\)\n<\/p>\n<p>\u3053\u3053\u3067\u3001<\/p>\n<ul>\n<li>\\(r1\\) \u306f\u5185\u7403\u306e\u534a\u5f84<\/li>\n<li>\\(r2\\) \u306f\u5916\u7403\u306e\u534a\u5f84<\/li>\n<\/ul>\n<p>\u7403\u5f62\u30b3\u30f3\u30c7\u30f3\u30b5\u306b\u304a\u3044\u3066\u3001<\/p>\n<ul>\n<li>\u5185\u7403\u3068\u5916\u7403\u306e\u9593\u306e\u8ddd\u96e2\u3092\u5c0f\u3055\u304f\u3059\u308b\u3068\u5bb9\u91cf\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/li>\n<li>\u5185\u7403\u3068\u5916\u7403\u305d\u308c\u305e\u308c\u306e\u534a\u5f84\u3092\u5927\u304d\u304f\u3059\u308b\u3068\u5bb9\u91cf\u304c\u5897\u52a0\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u5bb9\u91cf\u306f\u3001\u305d\u306e\u5f62\u72b6\u306b\u5927\u304d\u304f\u4f9d\u5b58\u3057\u307e\u3059\u3002\u5e73\u884c\u677f\u3001\u5186\u7b52\u5f62\u3001\u7403\u5f62\u306e\u7570\u306a\u308b\u5f62\u72b6\u306e\u30b3\u30f3\u30c7\u30f3\u30b5\u306f\u3001\u305d\u308c\u305e\u308c\u7570\u306a\u308b\u7279\u6027\u3092\u6301\u3061\u3001\u305d\u308c\u305e\u308c\u306e\u7528\u9014\u306b\u5fdc\u3058\u305f\u8a2d\u8a08\u304c\u6c42\u3081\u3089\u308c\u307e\u3059\u3002\u5f62\u72b6\u3068\u5bf8\u6cd5\u3092\u9069\u5207\u306b\u9078\u3076\u3053\u3068\u3067\u3001\u5fc5\u8981\u306a\u5bb9\u91cf\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002\u30b3\u30f3\u30c7\u30f3\u30b5\u3092\u8a2d\u8a08\u3059\u308b\u969b\u306b\u306f\u3001\u3053\u308c\u3089\u306e\u539f\u7406\u3092\u7406\u89e3\u3057\u3001\u6700\u9069\u306a\u5f62\u72b6\u3092\u9078\u3076\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30b3\u30f3\u30c7\u30f3\u30b5\u306e\u5f62\u72b6\u304c\u305d\u306e\u5bb9\u91cf\u306b\u4e0e\u3048\u308b\u5f71\u97ff\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3002\u57fa\u672c\u7684\u306a\u7269\u7406\u6cd5\u5247\u304b\u3089\u5177\u4f53\u4f8b\u307e\u3067\u3001\u521d\u5fc3\u8005\u306b\u3082\u7406\u89e3\u3057\u3084\u3059\u3044\u5185\u5bb9\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":[102],"tags":[],"class_list":["post-213759","post","type-post","status-publish","format-standard","hentry","category-102","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- 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