{"id":208964,"date":"2024-03-21T14:05:08","date_gmt":"2024-03-21T14:05:08","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e3%82%a6%e3%82%a3%e3%83%bc%e3%83%88%e3%82%b9%e3%83%88%e3%83%b3%e3%83%96%e3%83%aa%e3%83%83%e3%82%b8%e6%96%b9%e7%a8%8b%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%81%a8%e8%a8%88%e7%ae%97%e6%b3%95\/"},"modified":"2024-05-17T15:04:52","modified_gmt":"2024-05-17T15:04:52","slug":"%e3%82%a6%e3%82%a3%e3%83%bc%e3%83%88%e3%82%b9%e3%83%88%e3%83%b3%e3%83%96%e3%83%aa%e3%83%83%e3%82%b8%e6%96%b9%e7%a8%8b%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%81%a8%e8%a8%88%e7%ae%97%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%82%a6%e3%82%a3%e3%83%bc%e3%83%88%e3%82%b9%e3%83%88%e3%83%b3%e3%83%96%e3%83%aa%e3%83%83%e3%82%b8%e6%96%b9%e7%a8%8b%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%81%a8%e8%a8%88%e7%ae%97%e6%b3%95\/","title":{"rendered":"\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u65b9\u7a0b\u5f0f | \u89e3\u8aac\u3068\u8a08\u7b97\u6cd5"},"content":{"rendered":"<p class=\"sidekick\">\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u65b9\u7a0b\u5f0f\u306e\u89e3\u8aac\u3068\u8a08\u7b97\u6cd5\u3002\u57fa\u672c\u69cb\u6210\u3001\u65b9\u7a0b\u5f0f\u3001\u672a\u77e5\u306e\u62b5\u6297\u8a08\u7b97\u3001\u5b9f\u969b\u306e\u5fdc\u7528\u306b\u3064\u3044\u3066\u7c21\u6f54\u306b\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u65b9\u7a0b\u5f0f | \u89e3\u8aac\u3068\u8a08\u7b97\u6cd5<\/h2>\n<p>\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u306f\u3001\u96fb\u6c17\u5de5\u5b66\u306e\u57fa\u672c\u7684\u306a\u56de\u8def\u306e\u4e00\u3064\u3067\u3001\u62b5\u6297\u5024\u3092\u6e2c\u5b9a\u3059\u308b\u305f\u3081\u306b\u7528\u3044\u3089\u308c\u307e\u3059\u3002\u3053\u306e\u56de\u8def\u306f\u3001\u4e3b\u306b\u7cbe\u5ea6\u306e\u9ad8\u3044\u62b5\u6297\u306e\u6e2c\u5b9a\u3084\u30bb\u30f3\u30b5\u30fc\u306e\u5b9f\u9a13\u5668\u5177\u3068\u3057\u3066\u5e83\u304f\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u3053\u3067\u306f\u3001\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u306e\u57fa\u672c\u7684\u306a\u69cb\u6210\u3068\u305d\u306e\u65b9\u7a0b\u5f0f\u3001\u304a\u3088\u3073\u8a08\u7b97\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u306e\u57fa\u672c\u69cb\u6210<\/h2>\n<p>\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u306f\u3001\u56db\u3064\u306e\u62b5\u6297\u5668\u3068\u4e00\u3064\u306e\u96fb\u6e90\u3001\u305d\u3057\u3066\u691c\u6d41\u8a08\uff08\u30ac\u30eb\u30d0\u30ce\u30e1\u30fc\u30bf\u30fc\uff09\u304b\u3089\u69cb\u6210\u3055\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u63a5\u7d9a\u3055\u308c\u307e\u3059\uff1a<\/p>\n<ul>\n<li>\u62b5\u6297 \\(R1\\) \u3068 \\(R2\\) \u304c\u76f4\u5217\u306b\u63a5\u7d9a\u3055\u308c\u3001\u3053\u308c\u304c\u4e00\u3064\u306e\u679d\u3092\u5f62\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>\u62b5\u6297 \\(R3\\) \u3068 \\(R4\\) \u3082\u540c\u69d8\u306b\u76f4\u5217\u306b\u63a5\u7d9a\u3055\u308c\u3001\u3053\u308c\u304c\u3082\u3046\u4e00\u3064\u306e\u679d\u3092\u5f62\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>\u96fb\u6e90\u306f\u3001\u3053\u308c\u3089\u306e\u76f4\u5217\u679d\u306e\u4e21\u7aef\u306b\u63a5\u7d9a\u3055\u308c\u307e\u3059\u3002<\/li>\n<li>\u691c\u6d41\u8a08\u306f\u3001\u4e8c\u3064\u306e\u679d\u306e\u9593\u306b\u63a5\u7d9a\u3055\u308c\u3001\u96fb\u6d41\u306e\u6d41\u308c\u3092\u8a08\u6e2c\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<h2>\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u65b9\u7a0b\u5f0f<\/h2>\n<p>\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u304c\u5e73\u8861\u72b6\u614b\u306b\u3042\u308b\u3068\u304d\u3001\u3059\u306a\u308f\u3061\u691c\u6d41\u8a08\u306b\u96fb\u6d41\u304c\u6d41\u308c\u306a\u3044\u5834\u5408\u3001\u4ee5\u4e0b\u306e\u65b9\u7a0b\u5f0f\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\uff1a<\/p>\n<p><span class=\"math-formula\"> \\frac{R1}{R2} = \\frac{R3}{R4} <\/span><\/p>\n<p>\u3053\u306e\u65b9\u7a0b\u5f0f\u304b\u3089\u3001\u62b5\u6297 \\(R4\\) \u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4ed6\u306e\u4e09\u3064\u306e\u62b5\u6297\u5024\u304c\u65e2\u77e5\u306e\u5834\u5408\u3001\u672a\u77e5\u306e\u62b5\u6297\u5024\u3092\u6c42\u3081\u308b\u305f\u3081\u306b\u3053\u306e\u65b9\u7a0b\u5f0f\u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/p>\n<h2>\u8a08\u7b97\u6cd5<\/h2>\n<p>\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u3092\u7528\u3044\u3066\u672a\u77e5\u306e\u62b5\u6297 \\(R4\\) \u3092\u6c42\u3081\u308b\u624b\u9806\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n<ol>\n<li>\u4ed6\u306e\u4e09\u3064\u306e\u62b5\u6297 \\(R1\\)\u3001\\(R2\\)\u3001\u304a\u3088\u3073 \\(R3\\) \u3092\u65e2\u77e5\u306e\u5024\u3068\u3057\u307e\u3059\u3002<\/li>\n<li>\u96fb\u6e90\u3092\u63a5\u7d9a\u3057\u3001\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u56de\u8def\u3092\u69cb\u6210\u3057\u307e\u3059\u3002<\/li>\n<li>\u691c\u6d41\u8a08\u3092\u89b3\u5bdf\u3057\u307e\u3059\u3002\u691c\u6d41\u8a08\u306b\u96fb\u6d41\u304c\u6d41\u308c\u306a\u3044\u72b6\u614b\u3092\u63a2\u3057\u307e\u3059\u3002\u3053\u308c\u306f\u3001\u5909\u5316\u3055\u305b\u308b\u3053\u3068\u306e\u3067\u304d\u308b\u62b5\u6297\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u3067\u9054\u6210\u3067\u304d\u307e\u3059\u3002<\/li>\n<li>\u5e73\u8861\u72b6\u614b\u304c\u9054\u6210\u3055\u308c\u305f\u3089\u3001\u4ee5\u4e0b\u306e\u65b9\u7a0b\u5f0f\u3092\u7528\u3044\u3066\u672a\u77e5\u306e\u62b5\u6297 \\(R4\\) \u3092\u8a08\u7b97\u3057\u307e\u3059\uff1a<\/li>\n<li>\\( R4 = R3 \\cdot \\frac{R2}{R1} \\)<\/li>\n<\/ol>\n<h2>\u5b9f\u969b\u306e\u5fdc\u7528<\/h2>\n<p>\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u306f\u3001\u7cbe\u5bc6\u306a\u62b5\u6297\u306e\u6e2c\u5b9a\u3060\u3051\u3067\u306a\u304f\u3001\u6e29\u5ea6\u30bb\u30f3\u30b5\u30fc\u3084\u3072\u305a\u307f\u30b2\u30fc\u30b8\uff08\u529b\u3084\u5909\u5f62\u306e\u6e2c\u5b9a\uff09\u306a\u3069\u3001\u5de5\u696d\u3084\u7814\u7a76\u306e\u69d8\u3005\u306a\u5206\u91ce\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u7279\u306b\u3001\u9ad8\u7cbe\u5ea6\u304c\u6c42\u3081\u3089\u308c\u308b\u5834\u9762\u3067\u306f\u3001\u305d\u306e\u4fe1\u983c\u6027\u3068\u7cbe\u5ea6\u306e\u9ad8\u3055\u304b\u3089\u9078\u3070\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u306f\u3001\u30b7\u30f3\u30d7\u30eb\u3067\u4f7f\u3044\u3084\u3059\u3044\u306a\u304c\u3089\u3082\u975e\u5e38\u306b\u5f37\u529b\u306a\u8a08\u6e2c\u624b\u6cd5\u3067\u3059\u3002\u305d\u306e\u57fa\u672c\u539f\u7406\u3092\u7406\u89e3\u3057\u3001\u6b63\u78ba\u306b\u7d44\u307f\u7acb\u3066\u308b\u3053\u3068\u3067\u3001\u69d8\u3005\u306a\u5fdc\u7528\u5206\u91ce\u3067\u52b9\u679c\u7684\u306b\u4f7f\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3053\u308c\u304b\u3089\u96fb\u6c17\u5de5\u5b66\u3084\u96fb\u5b50\u5de5\u5b66\u3092\u5b66\u3073\u59cb\u3081\u308b\u65b9\u306b\u3068\u3063\u3066\u3001\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u306f\u57fa\u790e\u77e5\u8b58\u3068\u3057\u3066\u899a\u3048\u3066\u304a\u304d\u305f\u3044\u91cd\u8981\u306a\u30b3\u30f3\u30bb\u30d7\u30c8\u306e\u4e00\u3064\u3067\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u30a6\u30a3\u30fc\u30c8\u30b9\u30c8\u30f3\u30d6\u30ea\u30c3\u30b8\u65b9\u7a0b\u5f0f\u306e\u89e3\u8aac\u3068\u8a08\u7b97\u6cd5\u3002\u57fa\u672c\u69cb\u6210\u3001\u65b9\u7a0b\u5f0f\u3001\u672a\u77e5\u306e\u62b5\u6297\u8a08\u7b97\u3001\u5b9f\u969b\u306e\u5fdc\u7528\u306b\u3064\u3044\u3066\u7c21\u6f54\u306b\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\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-208964","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":"<!-- 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