{"id":209198,"date":"2024-03-21T14:06:34","date_gmt":"2024-03-21T14:06:34","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e6%b3%a2%e3%81%ae%e3%82%a4%e3%83%b3%e3%83%94%e3%83%bc%e3%83%80%e3%83%b3%e3%82%b9%e5%bc%8f-%e5%ae%9a%e7%be%a9%e3%80%81%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95%e3%80%81%e7%94%a8%e9%80%94\/"},"modified":"2024-05-17T15:08:48","modified_gmt":"2024-05-17T15:08:48","slug":"%e6%b3%a2%e3%81%ae%e3%82%a4%e3%83%b3%e3%83%94%e3%83%bc%e3%83%80%e3%83%b3%e3%82%b9%e5%bc%8f-%e5%ae%9a%e7%be%a9%e3%80%81%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95%e3%80%81%e7%94%a8%e9%80%94","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e6%b3%a2%e3%81%ae%e3%82%a4%e3%83%b3%e3%83%94%e3%83%bc%e3%83%80%e3%83%b3%e3%82%b9%e5%bc%8f-%e5%ae%9a%e7%be%a9%e3%80%81%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95%e3%80%81%e7%94%a8%e9%80%94\/","title":{"rendered":"\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u5f0f | \u5b9a\u7fa9\u3001\u8a08\u7b97\u65b9\u6cd5\u3001\u7528\u9014"},"content":{"rendered":"

\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u5b9a\u7fa9\u3001\u8a08\u7b97\u65b9\u6cd5\u3001\u97f3\u97ff\u5de5\u5b66\u3084\u7121\u7dda\u901a\u4fe1\u306a\u3069\u306e\u5177\u4f53\u7684\u306a\u7528\u9014\u3092\u7c21\u5358\u306b\u8aac\u660e\u3057\u307e\u3059\u3002\u7269\u7406\u5b66\u3068\u5de5\u5b66\u306e\u57fa\u672c\u77e5\u8b58\u3067\u3059\u3002<\/p>\n

\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u5f0f | \u5b9a\u7fa9\u3001\u8a08\u7b97\u65b9\u6cd5\u3001\u7528\u9014<\/h2>\n

\u7269\u7406\u5b66\u3068\u5de5\u5b66\u306e\u5206\u91ce\u3067\u5e83\u304f\u4f7f\u7528\u3055\u308c\u308b\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u3001\u975e\u5e38\u306b\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u5b9a\u7fa9\u3001\u8a08\u7b97\u65b9\u6cd5\u3001\u305d\u3057\u3066\u305d\u306e\u7528\u9014\u306b\u3064\u3044\u3066\u7c21\u5358\u306b\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3068\u306f\uff1f<\/h2>\n

\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3068\u306f\u3001\u6ce2\u304c\u3042\u308b\u5a92\u8cea\u3092\u4f1d\u64ad\u3059\u308b\u969b\u306b\u751f\u3058\u308b\u62b5\u6297\u306e\u4e00\u7a2e\u3067\u3042\u308a\u3001\u6ce2\u306e\u901f\u5ea6\u3068\u5a92\u8cea\u306e\u7279\u6027\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u3088\u308a\u5177\u4f53\u7684\u306b\u306f\u3001\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u6b21\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u307e\u3059\uff1a<\/p>\n

$$ Z = \\frac{V}{I} $$<\/p>\n

\u3053\u3053\u3067\u3001\\( Z \\) \u306f\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3001\\( V \\) \u306f\u96fb\u5727\u3001\u305d\u3057\u3066 \\( I \\) \u306f\u96fb\u6d41\u3067\u3059\u3002\u3053\u306e\u5f0f\u306f\u7279\u306b\u96fb\u6c17\u56de\u8def\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u304c\u3001\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u97f3\u6ce2\u3084\u96fb\u78c1\u6ce2\u306b\u3082\u9069\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n

\u8a08\u7b97\u65b9\u6cd5<\/h2>\n

\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u3001\u6ce2\u306e\u7a2e\u985e\u3084\u5a92\u8cea\u306b\u5fdc\u3058\u3066\u7570\u306a\u308b\u5f0f\u3067\u8a08\u7b97\u3055\u308c\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3044\u304f\u3064\u304b\u306e\u4ee3\u8868\u7684\u306a\u4f8b\u3067\u3059\u3002<\/p>\n

1. \u7a7a\u6c17\u4e2d\u306e\u97f3\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/h3>\n

\u97f3\u6ce2\u306e\u5834\u5408\u3001\u7a7a\u6c17\u4e2d\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u6b21\u306e\u3088\u3046\u306b\u6c42\u3081\u3089\u308c\u307e\u3059\uff1a<\/p>\n

$$ Z = \\rho \\cdot c $$<\/p>\n

\u3053\u3053\u3067\u3001\\( \\rho \\) \u306f\u7a7a\u6c17\u306e\u5bc6\u5ea6\u3067\u3001\\( c \\) \u306f\u97f3\u901f\u3067\u3059\u3002\u3053\u306e\u5f0f\u304b\u3089\u3001\u97f3\u6ce2\u304c\u7a7a\u6c17\u4e2d\u3092\u4f1d\u64ad\u3059\u308b\u969b\u306e\u62b5\u6297\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

2. \u96fb\u78c1\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/h3>\n

\u96fb\u78c1\u6ce2\u306e\u5834\u5408\u3001\u81ea\u7531\u7a7a\u9593\u4e2d\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9 \\( Z_0 \\) \u306f\u6b21\u306e\u5f0f\u3067\u6c42\u3081\u3089\u308c\u307e\u3059\uff1a<\/p>\n

$$ Z_0 = \\sqrt{\\frac{\\mu_0}{\\epsilon_0}} $$<\/p>\n

\u3053\u3053\u3067\u3001\\( \\mu_0 \\) \u306f\u81ea\u7531\u7a7a\u9593\u306e\u900f\u78c1\u7387\u3067\u3001 \\( \\epsilon_0 \\) \u306f\u81ea\u7531\u7a7a\u9593\u306e\u8a98\u96fb\u7387\u3067\u3059\u3002\u3053\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u7d04 377 \u30aa\u30fc\u30e0\u3068\u3057\u3066\u77e5\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

3. \u96fb\u6c17\u56de\u8def\u306e\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/h3>\n

\u96fb\u6c17\u56de\u8def\u306b\u304a\u3051\u308b\u4f1d\u9001\u7dda\u8def\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9 \\( Z_0 \\) \u306f\u6b21\u306e\u5f0f\u3067\u6c42\u3081\u3089\u308c\u307e\u3059\uff1a<\/p>\n

$$ Z_0 = \\sqrt{\\frac{L}{C}} $$<\/p>\n

\u3053\u3053\u3067\u3001\\( L \\) \u306f\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u3001\\( C \\) \u306f\u30ad\u30e3\u30d1\u30b7\u30bf\u30f3\u30b9\u3067\u3059\u3002\u3053\u306e\u5f0f\u306f\u7279\u306b\u9ad8\u5468\u6ce2\u306e\u4f1d\u9001\u7dda\u8def\u3067\u91cd\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

\u7528\u9014<\/h2>\n

\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u3055\u307e\u3056\u307e\u306a\u7528\u9014\u304c\u3042\u308a\u307e\u3059\u3002\u4ee5\u4e0b\u306b\u3044\u304f\u3064\u304b\u306e\u4f8b\u3092\u6319\u3052\u307e\u3059\u3002<\/p>\n

1. \u97f3\u97ff\u5de5\u5b66<\/h3>\n

\u97f3\u97ff\u5de5\u5b66\u3067\u306f\u3001\u97f3\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u5229\u7528\u3057\u3066\u3001\u30b9\u30d4\u30fc\u30ab\u30fc\u3084\u30de\u30a4\u30af\u30ed\u30d5\u30a9\u30f3\u306e\u8a2d\u8a08\u3001\u97f3\u97ff\u8a08\u6e2c\u306a\u3069\u3092\u884c\u3044\u307e\u3059\u3002\u9069\u5207\u306a\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u6301\u3064\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u52b9\u7387\u7684\u306b\u97f3\u6ce2\u3092\u4f1d\u9054\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n

2. \u7121\u7dda\u901a\u4fe1<\/h3>\n

\u7121\u7dda\u901a\u4fe1\u306b\u304a\u3044\u3066\u306f\u3001\u30a2\u30f3\u30c6\u30ca\u306e\u8a2d\u8a08\u3084\u4fe1\u53f7\u4f1d\u9001\u306e\u6700\u9069\u5316\u306e\u305f\u3081\u306b\u96fb\u78c1\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u304c\u91cd\u8981\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u30a2\u30f3\u30c6\u30ca\u304c\u9069\u5207\u306a\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u6301\u3064\u5834\u5408\u3001\u4fe1\u53f7\u306e\u9001\u53d7\u4fe1\u304c\u52b9\u7387\u7684\u306b\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n

3. \u9ad8\u5468\u6ce2\u56de\u8def\u8a2d\u8a08<\/h3>\n

\u9ad8\u5468\u6ce2\u56de\u8def\u8a2d\u8a08\u3067\u306f\u3001\u4f1d\u9001\u7dda\u8def\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u8003\u616e\u3059\u308b\u3053\u3068\u304c\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u6b63\u3057\u3044\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u6574\u5408\u306f\u3001\u4fe1\u53f7\u53cd\u5c04\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u305f\u3081\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n

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

\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u6ce2\u306e\u4f1d\u64ad\u306b\u95a2\u3059\u308b\u91cd\u8981\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u3067\u3059\u3002\u7269\u7406\u5b66\u3084\u5de5\u5b66\u306e\u591a\u304f\u306e\u5206\u91ce\u3067\u5229\u7528\u3055\u308c\u3001\u305d\u306e\u8a08\u7b97\u65b9\u6cd5\u3084\u7528\u9014\u3082\u591a\u5c90\u306b\u308f\u305f\u308a\u307e\u3059\u3002\u3053\u306e\u6982\u5ff5\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u3088\u308a\u52b9\u7387\u7684\u306a\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08\u3084\u6700\u9069\u306a\u6ce2\u306e\u4f1d\u64ad\u3092\u5b9f\u73fe\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u5b9a\u7fa9\u3001\u8a08\u7b97\u65b9\u6cd5\u3001\u97f3\u97ff\u5de5\u5b66\u3084\u7121\u7dda\u901a\u4fe1\u306a\u3069\u306e\u5177\u4f53\u7684\u306a\u7528\u9014\u3092\u7c21\u5358\u306b\u8aac\u660e\u3057\u307e\u3059\u3002\u7269\u7406\u5b66\u3068\u5de5\u5b66\u306e\u57fa\u672c\u77e5\u8b58\u3067\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-209198","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\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u5f0f | \u5b9a\u7fa9\u3001\u8a08\u7b97\u65b9\u6cd5\u3001\u7528\u9014<\/title>\n<meta name=\"description\" content=\"\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u5b9a\u7fa9\u3001\u8a08\u7b97\u65b9\u6cd5\u3001\u97f3\u97ff\u5de5\u5b66\u3084\u7121\u7dda\u901a\u4fe1\u306a\u3069\u306e\u5177\u4f53\u7684\u306a\u7528\u9014\u3092\u7c21\u5358\u306b\u8aac\u660e\u3057\u307e\u3059\u3002\u7269\u7406\u5b66\u3068\u5de5\u5b66\u306e\u57fa\u672c\u77e5\u8b58\u3067\u3059\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\/%e6%b3%a2%e3%81%ae%e3%82%a4%e3%83%b3%e3%83%94%e3%83%bc%e3%83%80%e3%83%b3%e3%82%b9%e5%bc%8f-%e5%ae%9a%e7%be%a9%e3%80%81%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95%e3%80%81%e7%94%a8%e9%80%94\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u6ce2\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u5f0f | 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