{"id":167695,"date":"2024-04-27T12:58:06","date_gmt":"2024-04-27T12:58:06","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e3%83%80%e3%82%a4%e3%83%9d%e3%83%bc%e3%83%ab%e3%82%a2%e3%83%b3%e3%83%86%e3%83%8a-2\/"},"modified":"2024-05-11T12:29:04","modified_gmt":"2024-05-11T12:29:04","slug":"%e3%83%80%e3%82%a4%e3%83%9d%e3%83%bc%e3%83%ab%e3%82%a2%e3%83%b3%e3%83%86%e3%83%8a-2","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%80%e3%82%a4%e3%83%9d%e3%83%bc%e3%83%ab%e3%82%a2%e3%83%b3%e3%83%86%e3%83%8a-2\/","title":{"rendered":"\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca"},"content":{"rendered":"<p 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\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u306e\u30d5\u30a3\u30fc\u30c9\u30dd\u30a4\u30f3\u30c8\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u3001\u901a\u5e38\u306f\u7d0473\u30aa\u30fc\u30e0\u3067\u3059\u3002\u5171\u632f\u5468\u6ce2\u6570\u3067\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u3001\u30a2\u30f3\u30c6\u30ca\u8a2d\u8a08\u306b\u304a\u3044\u3066\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002<\/li>\n<\/ul>\n<h2>\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u306e\u5fdc\u7528<\/h2>\n<p>\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u306f\u305d\u306e\u5358\u7d14\u3055\u3068\u52b9\u7387\u306e\u826f\u3055\u304b\u3089\u3001\u591a\u304f\u306e\u7121\u7dda\u901a\u4fe1\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u308f\u308c\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001FM\u30e9\u30b8\u30aa\u653e\u9001\u3001\u30a2\u30de\u30c1\u30e5\u30a2\u7121\u7dda\u3001\u3042\u308b\u3044\u306f\u30c6\u30ec\u30d3\u653e\u9001\u306a\u3069\u304c\u3042\u308a\u307e\u3059\u3002\u307e\u305f\u3001\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u306f\u8907\u6570\u63a5\u7d9a\u3057\u3066\u30a2\u30ec\u30a4\u3092\u5f62\u6210\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u9ad8\u3044\u6307\u5411\u6027\u3084\u30b2\u30a4\u30f3\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<h2>\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u306e\u8a2d\u8a08<\/h2>\n<p>\u30c0\u30a4\u30dd\u30fc\u30eb\u30a2\u30f3\u30c6\u30ca\u3092\u8a2d\u8a08\u3059\u308b\u969b\u306b\u306f\u3001\u4f7f\u7528\u3059\u308b\u5468\u6ce2\u6570\u306b\u9069\u3057\u305f\u9577\u3055\u306b\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u30a2\u30f3\u30c6\u30ca\u306e\u9577\u3055\\( L \\)\u306f\u3001\u6b21\u306e\u5f0f\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>\\[ L = \\frac{c}{2f} \\]<\/p>\n<p>\u3053\u3053\u3067\\( c \\)\u306f\u5149\u901f(\u7d04\\( 3 * 10^8 \\) m\/s)\u3001\\( f 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