{"id":167548,"date":"2024-04-27T12:39:09","date_gmt":"2024-04-27T12:39:09","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e3%83%91%e3%83%a9%e3%83%9c%e3%83%aa%e3%83%83%e3%82%af%e3%83%aa%e3%83%95%e3%83%ac%e3%82%af%e3%82%bf%e3%83%bc%e3%82%a2%e3%83%b3%e3%83%86%e3%83%8a\/"},"modified":"2024-05-11T12:10:29","modified_gmt":"2024-05-11T12:10:29","slug":"%e3%83%91%e3%83%a9%e3%83%9c%e3%83%aa%e3%83%83%e3%82%af%e3%83%aa%e3%83%95%e3%83%ac%e3%82%af%e3%82%bf%e3%83%bc%e3%82%a2%e3%83%b3%e3%83%86%e3%83%8a","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%91%e3%83%a9%e3%83%9c%e3%83%aa%e3%83%83%e3%82%af%e3%83%aa%e3%83%95%e3%83%ac%e3%82%af%e3%82%bf%e3%83%bc%e3%82%a2%e3%83%b3%e3%83%86%e3%83%8a\/","title":{"rendered":"\u30d1\u30e9\u30dc\u30ea\u30c3\u30af\u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u30a2\u30f3\u30c6\u30ca"},"content":{"rendered":"<p class=\"sidekick\">\u653e\u7269\u7dda\u5f62\u72b6\u3092\u5229\u7528\u3057\u3001\u96fb\u6ce2\u306e\u53d7\u4fe1\u3068\u9001\u4fe1\u306b\u512a\u308c\u305f\u6307\u5411\u6027\u3092\u6301\u3064\u30d1\u30e9\u30dc\u30ea\u30c3\u30af\u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u30a2\u30f3\u30c6\u30ca\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2024\/05\/\u30d1\u30e9\u30dc\u30ea\u30c3\u30af\u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u30a2\u30f3\u30c6\u30ca.png\" 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\u653e\u7269\u7dda\u306e\u5f62\u3092\u3057\u305f\u53cd\u5c04\u9762\u3067\u3059\u3002\u96fb\u6ce2\u3092\u96c6\u3081\u305f\u308a\u53cd\u5c04\u3055\u305b\u305f\u308a\u3059\u308b\u5f79\u5272\u3092\u3057\u307e\u3059\u3002<\/li>\n<li><strong>\u30d5\u30a3\u30fc\u30c9<\/strong>: \u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u306e\u7126\u70b9\u306b\u914d\u7f6e\u3055\u308c\u3001\u96fb\u6ce2\u3092\u9001\u4fe1\u3059\u308b\u5f79\u5272\u3092\u6301\u3064\u304b\u3001\u307e\u305f\u306f\u53d7\u4fe1\u3057\u305f\u96fb\u6ce2\u3092\u53d7\u3051\u53d6\u308a\u307e\u3059\u3002<\/li>\n<li><strong>\u30b5\u30dd\u30fc\u30c8\u30b9\u30c8\u30e9\u30af\u30c1\u30e3\u30fc<\/strong>: \u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u3068\u30d5\u30a3\u30fc\u30c9\u3092\u9069\u5207\u306a\u4f4d\u7f6e\u306b\u4fdd\u6301\u3059\u308b\u305f\u3081\u306e\u652f\u6301\u69cb\u9020\u3067\u3059\u3002<\/li>\n<\/ul>\n<h2>\u30d1\u30e9\u30dc\u30ea\u30c3\u30af\u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u30a2\u30f3\u30c6\u30ca\u306e\u539f\u7406<\/h2>\n<p>\u30d1\u30e9\u30dc\u30ea\u30c3\u30af\u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u30a2\u30f3\u30c6\u30ca\u306e\u57fa\u672c\u7684\u306a\u539f\u7406\u306f\u3001\u5165\u5c04\u96fb\u6ce2\u304c\u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u306e\u5f62\u72b6\u306b\u3088\u3063\u3066\u7126\u70b9\u306b\u96c6\u3081\u3089\u308c\u308b\u3053\u3068\u306b\u3042\u308a\u307e\u3059\u3002\u3053\u306e\u539f\u7406\u306f\u4ee5\u4e0b\u306e\u5f0f\u3067\u8aac\u660e\u3055\u308c\u307e\u3059\u3002<\/p>\n<p>\\[ f(r) = \\frac{1}{4a}r^2 \\]<\/p>\n<p>\u3053\u3053\u3067\u3001\\( f(r) \\) \u306f\u653e\u7269\u7dda\u306e\u6df1\u3055\u3001\\( r \\) \u306f\u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u306e\u534a\u5f84\u3001\\( a \\) \u306f\u7126\u70b9\u306e\u6df1\u3055\u3067\u3059\u3002\u3053\u306e\u95a2\u4fc2\u306b\u3088\u308a\u3001\u540c\u4e00\u5e73\u9762\u4e0a\u306e\u5168\u3066\u306e\u53cd\u5c04\u96fb\u6ce2\u306f\u540c\u4e00\u306e\u7126\u70b9\u306b\u96c6\u307e\u308b\u305f\u3081\u3001\u975e\u5e38\u306b\u52b9\u7387\u7684\u306a\u53d7\u4fe1\u304c\u53ef\u80fd\u3068\u306a\u308b\u306e\u3067\u3059\u3002<\/p>\n<h2>\u5fdc\u7528\u5206\u91ce<\/h2>\n<p>\u30d1\u30e9\u30dc\u30ea\u30c3\u30af\u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u30a2\u30f3\u30c6\u30ca\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u591a\u304f\u306e\u5206\u91ce\u3067\u4f7f\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>\u885b\u661f\u901a\u4fe1<\/li>\n<li>\u7121\u7dda\u901a\u4fe1<\/li>\n<li>\u30ec\u30fc\u30c0\u30fc\u30b7\u30b9\u30c6\u30e0<\/li>\n<li>\u5929\u6587\u5b66\u306e\u89b3\u6e2c<\/li>\n<\/ul>\n<p>\u3053\u306e\u30a2\u30f3\u30c6\u30ca\u304c\u5e83\u304f\u4f7f\u7528\u3055\u308c\u308b\u7406\u7531\u306f\u3001\u305d\u306e\u9ad8\u3044\u6307\u5411\u6027\u3068\u52b9\u7387\u306e\u826f\u3055\u306b\u3042\u308a\u307e\u3059\u3002\u7279\u5b9a\u306e\u65b9\u5411\u306b\u5f37\u3044\u96fb\u6ce2\u3092\u9001\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u9060\u8ddd\u96e2\u306e\u901a\u4fe1\u306b\u3082\u9069\u3057\u3066\u3044\u308b\u306e\u3067\u3059\u3002\u307e\u305f\u3001\u53cd\u5c04\u9762\u3092\u7d30\u304b\u304f\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u3001\u6307\u5411\u6027\u3092\u3055\u3089\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p>\u30d1\u30e9\u30dc\u30ea\u30c3\u30af\u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u30a2\u30f3\u30c6\u30ca\u306f\u3001\u7269\u7406\u5b66\u3068\u5de5\u5b66\u306e\u539f\u7406\u3092\u3046\u307e\u304f\u7d44\u307f\u5408\u308f\u305b\u3066\u4f5c\u308a\u4e0a\u3052\u3089\u308c\u305f\u3001\u96fb\u6c17\u3068\u78c1\u6c17\u306e\u77e5\u8b58\u306e\u7d20\u6674\u3089\u3057\u3044\u5fdc\u7528\u4f8b\u3067\u3059\u3002\u3053\u306e\u30a2\u30f3\u30c6\u30ca\u3092\u901a\u3058\u3066\u3001\u79c1\u305f\u3061\u306f\u9060\u304f\u96e2\u308c\u305f\u5834\u6240\u3068\u901a\u4fe1\u3092\u884c\u3063\u305f\u308a\u3001\u5b87\u5b99\u306e\u6df1\u9060\u306a\u8b0e\u3092\u63a2\u7a76\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u96e3\u3057\u3044\u7406\u8ad6\u3082\u5b9f\u969b\u306e\u5fdc\u7528\u3092\u901a\u3058\u3066\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u30d5\u30a3\u30b8\u30c3\u30af\u30b9\u306e\u9762\u767d\u3055\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306e\u53ef\u80fd\u6027\u3092\u3088\u308a\u591a\u304f\u306e\u4eba\u306b\u4f1d\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u79c1\u306f\u4fe1\u3058\u3066\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u653e\u7269\u7dda\u5f62\u72b6\u3092\u5229\u7528\u3057\u3001\u96fb\u6ce2\u306e\u53d7\u4fe1\u3068\u9001\u4fe1\u306b\u512a\u308c\u305f\u6307\u5411\u6027\u3092\u6301\u3064\u30d1\u30e9\u30dc\u30ea\u30c3\u30af\u30ea\u30d5\u30ec\u30af\u30bf\u30fc\u30a2\u30f3\u30c6\u30ca\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":190708,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[90],"tags":[91],"class_list":["post-167548","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-90","tag-91","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- 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