{"id":209162,"date":"2024-03-21T14:06:19","date_gmt":"2024-03-21T14:06:19","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e9%9b%bb%e7%a3%81%e8%aa%98%e5%b0%8e%e3%81%ae%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%96%b9%e6%b3%95\/"},"modified":"2024-05-17T15:08:12","modified_gmt":"2024-05-17T15:08:12","slug":"%e9%9b%bb%e7%a3%81%e8%aa%98%e5%b0%8e%e3%81%ae%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%96%b9%e6%b3%95","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e9%9b%bb%e7%a3%81%e8%aa%98%e5%b0%8e%e3%81%ae%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%96%b9%e6%b3%95\/","title":{"rendered":"\u96fb\u78c1\u8a98\u5c0e\u306e\u65b9\u7a0b\u5f0f | \u89e3\u8aac\u3068\u8a08\u7b97\u65b9\u6cd5"},"content":{"rendered":"<p class=\"sidekick\">\u96fb\u78c1\u8a98\u5c0e\u306e\u65b9\u7a0b\u5f0f\u306b\u3064\u3044\u3066\u3001\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247\u3084\u30ec\u30f3\u30c4\u306e\u6cd5\u5247\u3092\u4e2d\u5fc3\u306b\u3001\u8a08\u7b97\u65b9\u6cd5\u3084\u65e5\u5e38\u751f\u6d3b\u3067\u306e\u5fdc\u7528\u4f8b\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<h2>\u96fb\u78c1\u8a98\u5c0e\u306e\u65b9\u7a0b\u5f0f | \u89e3\u8aac\u3068\u8a08\u7b97\u65b9\u6cd5<\/h2>\n<p>\u96fb\u78c1\u8a98\u5c0e\u306f\u3001\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247\u306b\u5f93\u3063\u3066\u3001\u6642\u9593\u5909\u5316\u3059\u308b\u78c1\u5834\u304c\u5c0e\u4f53\u306e\u4e2d\u306b\u96fb\u6d41\u3092\u8a98\u8d77\u3059\u308b\u73fe\u8c61\u3092\u6307\u3057\u307e\u3059\u3002\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u96fb\u78c1\u8a98\u5c0e\u306e\u57fa\u672c\u7684\u306a\u65b9\u7a0b\u5f0f\u3068\u305d\u306e\u8a08\u7b97\u65b9\u6cd5\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247<\/h3>\n<p>\u96fb\u78c1\u8a98\u5c0e\u306e\u57fa\u672c\u7684\u306a\u6cd5\u5247\u306f\u3001\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u96fb\u78c1\u8a98\u5c0e\u306e\u6cd5\u5247\u3067\u3059\u3002\u3053\u306e\u6cd5\u5247\u306f\u6b21\u306e\u3088\u3046\u306b\u8868\u3055\u308c\u307e\u3059\uff1a<\/p>\n<p><i>&#8220;\u78c1\u675f\u306e\u6642\u9593\u5909\u5316\u304c\u30eb\u30fc\u30d7\u5185\u306b\u96fb\u4f4d\u5dee\u3092\u751f\u3058\u3055\u305b\u308b&#8221;<\/i><\/p>\n<p>\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247\u306f\u6570\u5f0f\u3067\u8868\u3059\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff1a<\/p>\n<p>\\[ \\mathcal{E} = &#8211; \\frac{d\\Phi}{dt} \\]<\/p>\n<p>\u3053\u3053\u3067\uff1a<\/p>\n<ul>\n<li>\\(\\mathcal{E}\\) \u306f\u8a98\u5c0e\u8d77\u96fb\u529b\uff08Volt, V\uff09\u3092\u8868\u3057\u307e\u3059\u3002<\/li>\n<li>\\(\\Phi\\) \u306f\u78c1\u675f\uff08Weber, Wb\uff09\u3092\u8868\u3057\u307e\u3059\u3002<\/li>\n<li>\\(\\frac{d\\Phi}{dt}\\) \u306f\u6642\u9593\u306b\u5bfe\u3059\u308b\u78c1\u675f\u306e\u5909\u5316\u7387\u3067\u3059\u3002<\/li>\n<\/ul>\n<p>\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247\u306f\u3001\u5c0e\u4f53\u5185\u306e\u30eb\u30fc\u30d7\u3092\u8cab\u304f\u78c1\u675f\u304c\u6642\u9593\u3068\u3068\u3082\u306b\u5909\u5316\u3059\u308b\u3068\u3001\u30eb\u30fc\u30d7\u5185\u306b\u96fb\u4f4d\u5dee\uff08\u8d77\u96fb\u529b\uff09\u304c\u751f\u3058\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u8d77\u96fb\u529b\u306b\u3088\u3063\u3066\u96fb\u6d41\u304c\u6d41\u308c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30ec\u30f3\u30c4\u306e\u6cd5\u5247<\/h3>\n<p>\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247\u306e\u4e2d\u306b\u306f\u8ca0\u306e\u7b26\u53f7\u304c\u542b\u307e\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u306f\u30ec\u30f3\u30c4\u306e\u6cd5\u5247\u306b\u3088\u308b\u3082\u306e\u3067\u3001\u8a98\u8d77\u3055\u308c\u305f\u96fb\u6d41\u306e\u5411\u304d\u304c\u539f\u78c1\u5834\u306e\u5909\u5316\u3092\u6253\u3061\u6d88\u3059\u65b9\u5411\u306b\u6d41\u308c\u308b\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<h3>\u5177\u4f53\u4f8b\u3068\u8a08\u7b97\u65b9\u6cd5<\/h3>\n<p>\u5177\u4f53\u7684\u306a\u8a08\u7b97\u4f8b\u3092\u901a\u3057\u3066\u3001\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h4>\u4f8b\u984c\uff1a<\/h4>\n<p>\u4e00\u5b9a\u306e\u901f\u5ea6\u3067\u56de\u8ee2\u3059\u308b\u5186\u5f62\u30b3\u30a4\u30eb\u3092\u8003\u3048\u307e\u3059\u3002\u30b3\u30a4\u30eb\u306e\u9762\u7a4d\u3092 \\(A\\)\u3001\u78c1\u5834\u306e\u5f37\u3055\u3092 \\(B\\)\u3001\u6642\u9593 \\(t\\) \u3068\u3059\u308b\u3068\u3001\u78c1\u5834\u304c\u6642\u9593\u3068\u3068\u3082\u306b\u5909\u5316\u3059\u308b\u5834\u5408\u3001\u78c1\u675f \\(\\Phi\\) \u306f\u6b21\u306e\u3088\u3046\u306b\u4e0e\u3048\u3089\u308c\u307e\u3059\uff1a<\/p>\n<p>\\[ \\Phi = B \\cdot A \\cdot cos(\\omega t) \\]<\/p>\n<p>\u3053\u3053\u3067\uff1a<\/p>\n<ul>\n<li>\\(A\\) \u306f\u30b3\u30a4\u30eb\u306e\u9762\u7a4d\uff08\u5e73\u65b9\u30e1\u30fc\u30c8\u30eb, \\(m^2\\)\uff09<\/li>\n<li>\\(\\omega\\) \u306f\u89d2\u901f\u5ea6\uff08\u30e9\u30b8\u30a2\u30f3\u6bce\u79d2, \\(rad\/s\\)\uff09<\/li>\n<li>\\(t\\) \u306f\u6642\u9593\uff08\u79d2, \\(s\\)\uff09<\/li>\n<\/ul>\n<p>\u78c1\u675f\u306e\u6642\u9593\u306b\u5bfe\u3059\u308b\u5909\u5316\u7387 \\(\\frac{d\\Phi}{dt}\\) \u3092\u8a08\u7b97\u3059\u308b\u3068\uff1a<\/p>\n<p>\\[ \\frac{d\\Phi}{dt} = \\frac{d}{dt} \\left( B \\cdot A \\cdot cos(\\omega t) \\right) = -B \\cdot A \\cdot \\omega \\cdot sin(\\omega t) \\]<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u8a98\u5c0e\u8d77\u96fb\u529b \\(\\mathcal{E}\\) \u306f\uff1a<\/p>\n<p>\\[ \\mathcal{E} = &#8211; \\left( -B \\cdot A \\cdot \\omega \\cdot sin(\\omega t) \\right) = B \\cdot A \\cdot \\omega \\cdot sin(\\omega t) \\]<\/p>\n<p>\u3053\u308c\u306b\u3088\u308a\u3001\u8a98\u8d77\u3055\u308c\u305f\u96fb\u5727\u304c\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u5fdc\u7528\u3068\u65e5\u5e38\u751f\u6d3b\u3078\u306e\u5f71\u97ff<\/h3>\n<p>\u96fb\u78c1\u8a98\u5c0e\u306e\u539f\u7406\u306f\u3001\u591a\u304f\u306e\u5b9f\u7528\u7684\u306a\u5fdc\u7528\u306b\u7e4b\u304c\u3063\u3066\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u767a\u96fb\u6a5f\u3001\u5909\u5727\u5668\u3001\u30a4\u30f3\u30c0\u30af\u30bf\u306a\u3069\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u30c7\u30d0\u30a4\u30b9\u306f\u3001\u5bb6\u5ead\u3084\u7523\u696d\u306b\u304a\u3044\u3066\u4e0d\u53ef\u6b20\u306a\u96fb\u529b\u4f9b\u7d66\u30b7\u30b9\u30c6\u30e0\u306e\u4e00\u90e8\u3092\u5f62\u6210\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u96fb\u78c1\u8a98\u5c0e\u306e\u539f\u7406\u306f\u3001\u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\u30b7\u30b9\u30c6\u30e0\u306b\u3082\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u3084\u96fb\u52d5\u6b6f\u30d6\u30e9\u30b7\u306a\u3069\u304c\u3001\u30b1\u30fc\u30d6\u30eb\u3092\u4f7f\u308f\u305a\u306b\u5145\u96fb\u3067\u304d\u308b\u306e\u3082\u3001\u3053\u306e\u96fb\u78c1\u8a98\u5c0e\u306e\u6cd5\u5f8b\u306e\u304a\u304b\u3052\u3067\u3059\u3002<\/p>\n<h3>\u307e\u3068\u3081<\/h3>\n<p>\u96fb\u78c1\u8a98\u5c0e\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u78c1\u5834\u306e\u6642\u9593\u5909\u5316\u306b\u3088\u3063\u3066\u96fb\u4f4d\u5dee\u3092\u751f\u3058\u3055\u305b\u308b\u73fe\u8c61\u3092\u8a18\u8ff0\u3059\u308b\u57fa\u672c\u7684\u306a\u7269\u7406\u6cd5\u5247\u3067\u3059\u3002\u3053\u306e\u6cd5\u5247\u306f\u3001\u65e5\u5e38\u751f\u6d3b\u304b\u3089\u5de5\u696d\u5fdc\u7528\u307e\u3067\u3001\u5e83\u7bc4\u306a\u5206\u91ce\u3067\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u3044\u307e\u3059\u3002\u4eca\u56de\u306e\u8a18\u4e8b\u3067\u3001\u96fb\u78c1\u8a98\u5c0e\u306e\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\u3068\u5177\u4f53\u4f8b\u3092\u901a\u3057\u3066\u3001\u8a08\u7b97\u65b9\u6cd5\u3092\u7406\u89e3\u3067\u304d\u305f\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u96fb\u78c1\u8a98\u5c0e\u306e\u65b9\u7a0b\u5f0f\u306b\u3064\u3044\u3066\u3001\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247\u3084\u30ec\u30f3\u30c4\u306e\u6cd5\u5247\u3092\u4e2d\u5fc3\u306b\u3001\u8a08\u7b97\u65b9\u6cd5\u3084\u65e5\u5e38\u751f\u6d3b\u3067\u306e\u5fdc\u7528\u4f8b\u3092\u308f\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\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-209162","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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