{"id":208990,"date":"2024-03-21T14:05:17","date_gmt":"2024-03-21T14:05:17","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e4%ba%a4%e6%b5%81%e3%82%a4%e3%83%b3%e3%83%94%e3%83%bc%e3%83%80%e3%83%b3%e3%82%b9%e3%81%ae%e5%85%ac%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%81%a8%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95\/"},"modified":"2024-05-17T15:05:19","modified_gmt":"2024-05-17T15:05:19","slug":"%e4%ba%a4%e6%b5%81%e3%82%a4%e3%83%b3%e3%83%94%e3%83%bc%e3%83%80%e3%83%b3%e3%82%b9%e3%81%ae%e5%85%ac%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%81%a8%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e4%ba%a4%e6%b5%81%e3%82%a4%e3%83%b3%e3%83%94%e3%83%bc%e3%83%80%e3%83%b3%e3%82%b9%e3%81%ae%e5%85%ac%e5%bc%8f-%e8%a7%a3%e8%aa%ac%e3%81%a8%e8%a8%88%e7%ae%97%e6%96%b9%e6%b3%95\/","title":{"rendered":"\u4ea4\u6d41\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u516c\u5f0f | \u89e3\u8aac\u3068\u8a08\u7b97\u65b9\u6cd5"},"content":{"rendered":"<p class=\"sidekick\">\u4ea4\u6d41\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u516c\u5f0f\u3068\u8a08\u7b97\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3001\u8a98\u5c0e\u6027\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u3001\u9759\u96fb\u6027\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u306e\u57fa\u672c\u3092\u7406\u89e3\u3057\u8a08\u7b97\u4f8b\u3092\u7d39\u4ecb\u3002<\/p>\n<h2>\u4ea4\u6d41\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u516c\u5f0f | \u89e3\u8aac\u3068\u8a08\u7b97\u65b9\u6cd5<\/h2>\n<p>\u96fb\u6c17\u5de5\u5b66\u306e\u5206\u91ce\u3067\u3088\u304f\u51fa\u3066\u304f\u308b\u8a00\u8449\u306e\u4e00\u3064\u306b\u300c\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\uff08Impedance\uff09\u300d\u304c\u3042\u308a\u307e\u3059\u3002\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3068\u306f\u3001\u76f4\u6d41\u56de\u8def\u306b\u304a\u3051\u308b\u62b5\u6297\u306b\u76f8\u5f53\u3059\u308b\u3082\u306e\u3067\u3001\u4ea4\u6d41\u56de\u8def\u3067\u306f\u62b5\u6297\u306b\u52a0\u3048\u3066\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\uff08\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u306f\u8a98\u5c0e\u6027\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u3068\u9759\u96fb\u6027\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u304b\u3089\u6210\u308a\u307e\u3059\uff09\u3082\u8003\u616e\u3055\u308c\u308b\u305f\u3081\u3001\u8907\u7d20\u6570\u3068\u3057\u3066\u8868\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u4ea4\u6d41\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u516c\u5f0f\u3068\u305d\u306e\u8a08\u7b97\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h2>\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3068\u306f\uff1f<\/h2>\n<p>\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u3001\u4ea4\u6d41\u96fb\u6d41\u306b\u5bfe\u3059\u308b\u62b5\u6297\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3001\u5358\u4f4d\u306f\u30aa\u30fc\u30e0 (\u03a9) \u3067\u3059\u3002\u4ea4\u6d41\u56de\u8def\u3067\u306f\u3001\u62b5\u6297(R)\u3060\u3051\u3067\u306a\u304f\u3001\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9(L)\u3084\u30ad\u30e3\u30d1\u30b7\u30bf\u30f3\u30b9(C)\u3082\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u8981\u7d20\u3092\u8003\u616e\u3057\u3066\u3001\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u6b21\u306e\u3088\u3046\u306b\u5b9a\u7fa9\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p><strong>\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9<\/strong> \\( Z \\) \u306f\u6b21\u306e\u3088\u3046\u306b\u8868\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>\\[ Z = R + jX \\]<\/p>\n<p>\u3053\u3053\u3067\u3001<\/p>\n<ul>\n<li>\\( R \\) \u306f\u62b5\u6297 (Real part)<\/li>\n<li>\\( j \\) \u306f\u865a\u6570\u5358\u4f4d (\\(j = \\sqrt{-1}\\))<\/li>\n<li>\\( X \\) \u306f\u30ea\u30a2\u30af\u30bf\u30f3\u30b9 (Imaginary part)<\/li>\n<\/ul>\n<h2>\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u306e\u7a2e\u985e<\/h2>\n<p>\u30ea\u30a2\u30af\u30bf\u30f3\u30b9 \\( X \\) \u306b\u306f\u6b21\u306e2\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\uff1a<\/p>\n<h3>\u8a98\u5c0e\u6027\u30ea\u30a2\u30af\u30bf\u30f3\u30b9 \\( X_L \\)<\/h3>\n<p>\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9 \\( L \\) \u306b\u3088\u308b\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u3067\u3001\u516c\u5f0f\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n<p>\\[ X_L = 2\\pi f L \\]<\/p>\n<p>\u3053\u3053\u3067\u3001<\/p>\n<ul>\n<li>\\( f \\) \u306f\u5468\u6ce2\u6570\uff08Hz\uff09<\/li>\n<li>\\( L \\) \u306f\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\uff08H; \u30d8\u30f3\u30ea\u30fc\uff09<\/li>\n<\/ul>\n<h3>\u9759\u96fb\u6027\u30ea\u30a2\u30af\u30bf\u30f3\u30b9 \\( X_C \\)<\/h3>\n<p>\u30ad\u30e3\u30d1\u30b7\u30bf\u30f3\u30b9 \\( C \\) \u306b\u3088\u308b\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u3067\u3001\u516c\u5f0f\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\uff1a<\/p>\n<p>\\[ X_C = \\frac{1}{2\\pi f C} \\]<\/p>\n<p>\u3053\u3053\u3067\u3001<\/p>\n<ul>\n<li>\\( f \\) \u306f\u5468\u6ce2\u6570\uff08Hz\uff09<\/li>\n<li>\\( C \\) \u306f\u30ad\u30e3\u30d1\u30b7\u30bf\u30f3\u30b9\uff08F; \u30d5\u30a1\u30e9\u30c3\u30c9\uff09<\/li>\n<\/ul>\n<h2>\u7dcf\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u8a08\u7b97<\/h2>\n<p>\u62b5\u6297 \\( R \\) \u3068\u30ea\u30a2\u30af\u30bf\u30f3\u30b9 \\( X \\) \u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u7dcf\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9 \\( Z \\) \u306f\u6b21\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p>\\[ Z = \\sqrt{R^2 + X^2} \\]<\/p>\n<p>\u3053\u3053\u3067\u3001\u30ea\u30a2\u30af\u30bf\u30f3\u30b9 \\( X \\) \u306f \\( X = X_L &#8211; X_C \\) \u3067\u3059\u3002<\/p>\n<h2>\u8a08\u7b97\u4f8b<\/h2>\n<p>\u4ee5\u4e0b\u306b\u3001\u5177\u4f53\u7684\u306a\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u8a08\u7b97\u4f8b\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n<p><strong>\u4f8b:<\/strong> \u4ee5\u4e0b\u306e\u5024\u3092\u6301\u3064\u56de\u8def\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u6c42\u3081\u306a\u3055\u3044\uff1a<\/p>\n<ul>\n<li>\u62b5\u6297 \\( R \\) = 30\u03a9<\/li>\n<li>\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9 \\( L \\) = 0.05H<\/li>\n<li>\u30ad\u30e3\u30d1\u30b7\u30bf\u30f3\u30b9 \\( C \\) = 200\u03bcF\uff08\u30de\u30a4\u30af\u30ed\u30d5\u30a1\u30e9\u30c3\u30c9\uff09<\/li>\n<li>\u5468\u6ce2\u6570 \\( f \\) = 50Hz<\/li>\n<\/ul>\n<p>\u307e\u305a\u3001\u8a98\u5c0e\u6027\u30ea\u30a2\u30af\u30bf\u30f3\u30b9 \\( X_L \\) \u3092\u8a08\u7b97\u3057\u307e\u3059\uff1a<\/p>\n<p>\\[ X_L = 2\\pi f L = 2 \\times \\pi \\times 50 \\times 0.05 = 15.7\\Omega \\]<\/p>\n<p>\u6b21\u306b\u3001\u9759\u96fb\u6027\u30ea\u30a2\u30af\u30bf\u30f3\u30b9 \\( X_C \\) \u3092\u8a08\u7b97\u3057\u307e\u3059\uff1a<\/p>\n<p>\\[ X_C = \\frac{1}{2\\pi f C} = \\frac{1}{2 \\times \\pi \\times 50 \\times 200 \\times 10^{-6}} = 15.9\\Omega \\]<\/p>\n<p>\u30ea\u30a2\u30af\u30bf\u30f3\u30b9 \\( X \\) \u3092\u6c42\u3081\u307e\u3059\uff1a<\/p>\n<p>\\[ X = X_L &#8211; X_C = 15.7 &#8211; 15.9 = -0.2\\Omega \\]<\/p>\n<p>\u6700\u5f8c\u306b\u3001\u7dcf\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9 \\( Z \\) \u3092\u8a08\u7b97\u3057\u307e\u3059\uff1a<\/p>\n<p>\\[ Z = \\sqrt{R^2 + X^2} = \\sqrt{30^2 + (-0.2)^2} \\approx 30.001\\Omega \\]<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u306e\u56de\u8def\u306e\u7dcf\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u7d0430.001\u03a9\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306f\u4ea4\u6d41\u56de\u8def\u306e\u7279\u6027\u3092\u7406\u89e3\u3059\u308b\u4e0a\u3067\u975e\u5e38\u306b\u91cd\u8981\u306a\u6982\u5ff5\u3067\u3059\u3002\u62b5\u6297\u3001\u30a4\u30f3\u30c0\u30af\u30bf\u30f3\u30b9\u3001\u30ad\u30e3\u30d1\u30b7\u30bf\u30f3\u30b9\u306e\u5404\u8981\u7d20\u3092\u3057\u3063\u304b\u308a\u3068\u628a\u63e1\u3057\u3001\u305d\u308c\u305e\u308c\u306e\u5f71\u97ff\u3092\u7dcf\u5408\u7684\u306b\u8003\u616e\u3059\u308b\u3053\u3068\u3067\u3001\u6b63\u78ba\u306a\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u7c21\u5358\u306a\u516c\u5f0f\u3092\u4f7f\u3063\u3066\u8a08\u7b97\u3092\u884c\u3046\u3060\u3051\u3067\u3001\u56de\u8def\u306e\u7279\u6027\u3092\u3088\u308a\u6df1\u304f\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4ea4\u6d41\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u306e\u516c\u5f0f\u3068\u8a08\u7b97\u65b9\u6cd5\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u3001\u8a98\u5c0e\u6027\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u3001\u9759\u96fb\u6027\u30ea\u30a2\u30af\u30bf\u30f3\u30b9\u306e\u57fa\u672c\u3092\u7406\u89e3\u3057\u8a08\u7b97\u4f8b\u3092\u7d39\u4ecb\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-208990","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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