{"id":214730,"date":"2024-10-30T08:35:08","date_gmt":"2024-10-30T08:35:08","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/?p=214730"},"modified":"2024-10-30T08:35:08","modified_gmt":"2024-10-30T08:35:08","slug":"%e3%83%af%e3%82%a4%e3%83%a4%e3%83%ac%e3%82%b9%e9%9b%bb%e5%8a%9b%e4%bc%9d%e9%80%81%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e9%9b%bb%e7%a3%81%e6%b3%a2%e3%81%ae%e5%bd%b9","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%af%e3%82%a4%e3%83%a4%e3%83%ac%e3%82%b9%e9%9b%bb%e5%8a%9b%e4%bc%9d%e9%80%81%e3%82%b7%e3%82%b9%e3%83%86%e3%83%a0%e3%81%ab%e3%81%8a%e3%81%91%e3%82%8b%e9%9b%bb%e7%a3%81%e6%b3%a2%e3%81%ae%e5%bd%b9\/","title":{"rendered":"\u30ef\u30a4\u30e4\u30ec\u30b9\u96fb\u529b\u4f1d\u9001\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u96fb\u78c1\u6ce2\u306e\u5f79\u5272\u3068\u306f\uff1f"},"content":{"rendered":"

\u30ef\u30a4\u30e4\u30ec\u30b9\u96fb\u529b\u4f1d\u9001\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3055\u308c\u308b\u96fb\u78c1\u6ce2\u306e\u5f79\u5272\u3084\u4ed5\u7d44\u307f\u3001\u305d\u306e\u5fdc\u7528\u4f8b\u306b\u3064\u3044\u3066\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u30ef\u30a4\u30e4\u30ec\u30b9\u96fb\u529b\u4f1d\u9001\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u96fb\u78c1\u6ce2\u306e\u5f79\u5272\u3068\u306f\uff1f<\/h2>\n

\u73fe\u4ee3\u306e\u6280\u8853\u306b\u304a\u3044\u3066\u3001\u30ef\u30a4\u30e4\u30ec\u30b9\u96fb\u529b\u4f1d\u9001\u30b7\u30b9\u30c6\u30e0\u306f\u975e\u5e38\u306b\u6ce8\u76ee\u3092\u96c6\u3081\u3066\u3044\u308b\u5206\u91ce\u3067\u3059\u3002\u3053\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u30b1\u30fc\u30d6\u30eb\u3084\u30b3\u30cd\u30af\u30bf\u3092\u4f7f\u308f\u305a\u306b\u96fb\u529b\u3092\u9001\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u5229\u4fbf\u6027\u3068\u5b89\u5168\u6027\u3092\u5927\u3044\u306b\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u6280\u8853\u306e\u80cc\u5f8c\u306b\u306f\u3069\u306e\u3088\u3046\u306a\u539f\u7406\u304c\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f\u305d\u306e\u30ad\u30fc\u3068\u306a\u308b\u8981\u7d20\u306f\u300c\u96fb\u78c1\u6ce2\u300d\u3067\u3059\u3002<\/p>\n

\u96fb\u78c1\u6ce2\u3068\u306f\uff1f<\/h2>\n

\u96fb\u78c1\u6ce2\u306f\u3001\u96fb\u5834\u3068\u78c1\u5834\u304c\u4e92\u3044\u306b\u76f4\u4ea4\u3057\u3066\u4f1d\u64ad\u3059\u308b\u6ce2\u3067\u3059\u3002\u96fb\u78c1\u6ce2\u306f\u3001\u7121\u7dda\u3001\u30c6\u30ec\u30d3\u3001\u643a\u5e2f\u96fb\u8a71\u3001Wi-Fi\u306a\u3069\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u901a\u4fe1\u6280\u8853\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u6ce2\u306f\u3001\u5149\u306e\u901f\u5ea6\uff08\u7d04299,792 km\/s\uff09\u3067\u7a7a\u9593\u3092\u4f1d\u308f\u308a\u307e\u3059\u3002<\/p>\n

\u96fb\u78c1\u6ce2\u306e\u5f79\u5272<\/h2>\n

\u30ef\u30a4\u30e4\u30ec\u30b9\u96fb\u529b\u4f1d\u9001\u306e\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u4e00\u822c\u7684\u306b\u96fb\u78c1\u6ce2\u3092\u5229\u7528\u3057\u307e\u3059\u3002\u7279\u306b\u3001\u9ad8\u5468\u6ce2\uff08RF\uff09\u3068\u547c\u3070\u308c\u308b\u7a2e\u985e\u306e\u96fb\u78c1\u6ce2\u304c\u4f7f\u308f\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u4ee5\u4e0b\u306b\u3001\u3044\u304f\u3064\u304b\u306e\u57fa\u790e\u7684\u306a\u4e8b\u9805\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

<\/p>\n

  • \u96fb\u529b\u306e\u767a\u751f\uff1a\u9001\u4fe1\u6a5f\u304cAC\u96fb\u529b\u3092\u9ad8\u5468\u6ce2\u96fb\u78c1\u6ce2\u306b\u5909\u63db\u3057\u307e\u3059\u3002\u3053\u306e\u9ad8\u5468\u6ce2\u96fb\u78c1\u6ce2\u306f\u3001\u7a7a\u9593\u3092\u901a\u3058\u3066\u96fb\u529b\u3092\u904b\u3073\u307e\u3059\u3002<\/li>\n
  • \u96fb\u529b\u306e\u4f1d\u9001\uff1a\u96fb\u78c1\u6ce2\u304c\u7a7a\u9593\u3092\u79fb\u52d5\u3057\u3001\u53d7\u4fe1\u6a5f\u306b\u5230\u9054\u3057\u307e\u3059\u3002<\/li>\n
  • \u96fb\u529b\u306e\u53d7\u4fe1\uff1a\u53d7\u4fe1\u6a5f\u304c\u96fb\u78c1\u6ce2\u3092\u518d\u3073AC\u96fb\u529b\u306b\u5909\u63db\u3057\u3001\u30c7\u30d0\u30a4\u30b9\u306b\u4f9b\u7d66\u3057\u307e\u3059\u3002<\/li>\n

    <\/u1><\/p>\n

    \u57fa\u672c\u7684\u306a\u6570\u5f0f<\/h2>\n

    \u96fb\u78c1\u6ce2\u306e\u4f1d\u64ad\u306b\u304a\u3044\u3066\u3001\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u65b9\u7a0b\u5f0f\u304c\u57fa\u672c\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u65b9\u7a0b\u5f0f\u306f\u96fb\u5834 (E) \u3068\u78c1\u5834 (B) \u306e\u95a2\u4fc2\u3092\u793a\u3057\u3066\u3044\u307e\u3059\uff1a<\/p>\n

    \\(\\nabla \\cdot \\mathbf{E} = \\frac{\\rho}{\\epsilon_0}\\) (\u30ac\u30a6\u30b9\u306e\u6cd5\u5247)<\/p>\n

    \\(\\nabla \\cdot \\mathbf{B} = 0\\) (\u78c1\u6c17\u5358\u6975\u5b50\u306e\u4e0d\u5b58)<\/p>\n

    \\(\\nabla \\times \\mathbf{E} = -\\frac{\\partial \\mathbf{B}}{\\partial t}\\) (\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247)<\/p>\n

    \\(\\nabla \\times \\mathbf{B} = \\mu_0\\mathbf{J} + \\mu_0\\epsilon_0 \\frac{\\partial \\mathbf{E}}{\\partial t}\\) (\u30a2\u30f3\u30da\u30fc\u30eb\u30fb\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u6cd5\u5247)<\/p>\n

    \u5fdc\u7528\u4f8b<\/h2>\n

    <\/p>\n

  • \u96fb\u52d5\u6b6f\u30d6\u30e9\u30b7\u306e\u5145\u96fb\uff1a\u96fb\u78c1\u6ce2\u3092\u5229\u7528\u3057\u3066\u3001\u6b6f\u30d6\u30e9\u30b7\u3092\u30ef\u30a4\u30e4\u30ec\u30b9\u3067\u5145\u96fb\u3057\u307e\u3059\u3002<\/li>\n
  • \u30b9\u30de\u30fc\u30c8\u30d5\u30a9\u30f3\u306e\u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\uff1a\u53d7\u4fe1\u30b3\u30a4\u30eb\u3067\u96fb\u78c1\u6ce2\u3092\u53d7\u3051\u53d6\u308a\u3001\u96fb\u529b\u3092\u4f9b\u7d66\u3057\u307e\u3059\u3002<\/li>\n
  • \u96fb\u6c17\u81ea\u52d5\u8eca\u306e\u30ef\u30a4\u30e4\u30ec\u30b9\u5145\u96fb\uff1a\u5730\u9762\u306b\u57cb\u3081\u8fbc\u307e\u308c\u305f\u9001\u4fe1\u5668\u304b\u3089\u8eca\u306b\u96fb\u529b\u3092\u4f1d\u3048\u307e\u3059\u3002<\/li>\n

    <\/o1><\/p>\n

    \u7d50\u8ad6<\/h2>\n

    \u96fb\u78c1\u6ce2\u306f\u30ef\u30a4\u30e4\u30ec\u30b9\u96fb\u529b\u4f1d\u9001\u30b7\u30b9\u30c6\u30e0\u306e\u4e2d\u5fc3\u7684\u306a\u5f79\u5272\u3092\u679c\u305f\u3057\u3066\u304a\u308a\u3001\u3053\u306e\u6280\u8853\u306f\u65e5\u5e38\u751f\u6d3b\u306e\u3055\u307e\u3056\u307e\u306a\u5834\u9762\u3067\u5fdc\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u96fb\u78c1\u6ce2\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u5c06\u6765\u7684\u306a\u6280\u8853\u9769\u65b0\u306b\u3082\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u5e83\u304c\u308a\u307e\u3059\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

    \u30ef\u30a4\u30e4\u30ec\u30b9\u96fb\u529b\u4f1d\u9001\u30b7\u30b9\u30c6\u30e0\u3067\u4f7f\u7528\u3055\u308c\u308b\u96fb\u78c1\u6ce2\u306e\u5f79\u5272\u3084\u4ed5\u7d44\u307f\u3001\u305d\u306e\u5fdc\u7528\u4f8b\u306b\u3064\u3044\u3066\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\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":[102],"tags":[],"class_list":["post-214730","post","type-post","status-publish","format-standard","hentry","category-102","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"\n\u30ef\u30a4\u30e4\u30ec\u30b9\u96fb\u529b\u4f1d\u9001\u30b7\u30b9\u30c6\u30e0\u306b\u304a\u3051\u308b\u96fb\u78c1\u6ce2\u306e\u5f79\u5272\u3068\u306f\uff1f<\/title>\n<meta name=\"description\" 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