{"id":209153,"date":"2024-03-21T14:06:18","date_gmt":"2024-03-21T14:06:18","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e3%83%9e%e3%82%af%e3%82%b9%e3%82%a6%e3%82%a7%e3%83%ab%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%a6%82%e8%a6%81%e3%81%a8%e5%ae%9f%e7%94%a8%e6%80%a7\/"},"modified":"2024-05-17T15:08:08","modified_gmt":"2024-05-17T15:08:08","slug":"%e3%83%9e%e3%82%af%e3%82%b9%e3%82%a6%e3%82%a7%e3%83%ab%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%a6%82%e8%a6%81%e3%81%a8%e5%ae%9f%e7%94%a8%e6%80%a7","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%9e%e3%82%af%e3%82%b9%e3%82%a6%e3%82%a7%e3%83%ab%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%a6%82%e8%a6%81%e3%81%a8%e5%ae%9f%e7%94%a8%e6%80%a7\/","title":{"rendered":"\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f | \u6982\u8981\u3068\u5b9f\u7528\u6027"},"content":{"rendered":"

\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306e\u6982\u8981\u3068\u305d\u306e\u5b9f\u7528\u6027\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002\u96fb\u5834\u3068\u78c1\u5834\u306e\u57fa\u672c\u539f\u7406\u3092\u793a\u3057\u3001\u901a\u4fe1\u6280\u8853\u3001\u533b\u7642\u6280\u8853\u3001\u96fb\u6c17\u56de\u8def\u8a2d\u8a08\u306a\u3069\u3078\u306e\u5fdc\u7528\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n

\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f | \u6982\u8981\u3068\u5b9f\u7528\u6027<\/h2>\n

\u96fb\u6c17\u3068\u78c1\u6c17\u306e\u95a2\u4fc2\u3092\u5305\u62ec\u3059\u308b\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u73fe\u4ee3\u306e\u96fb\u78c1\u6c17\u5b66\u306e\u57fa\u790e\u3092\u7bc9\u3044\u305f\u5927\u5909\u91cd\u8981\u306a\u3082\u306e\u3067\u3042\u308a\u3001\u6570\u3005\u306e\u5b9f\u7528\u7684\u306a\u5fdc\u7528\u306b\u5bc4\u4e0e\u3057\u3066\u3044\u307e\u3059\u3002\u672c\u8a18\u4e8b\u3067\u306f\u3001\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306e\u6982\u8981\u3068\u305d\u306e\u5b9f\u7528\u6027\u306b\u3064\u3044\u3066\u7c21\u5358\u306b\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n

\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306e\u6982\u8981<\/h3>\n

\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u96fb\u5834 \\( \\mathbf{E} \\)\u304a\u3088\u3073\u78c1\u5834 \\( \\mathbf{B} \\) \u306e\u5909\u5316\u3092\u8a18\u8ff0\u3059\u308b4\u3064\u306e\u4e3b\u8981\u306a\u65b9\u7a0b\u5f0f\u304b\u3089\u69cb\u6210\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n

1. \u30ac\u30a6\u30b9\u306e\u6cd5\u5247 (\u96fb\u5834)<\/h4>\n

\u96fb\u5834\u306e\u767a\u751f\u6e90\u3067\u3042\u308b\u96fb\u8377\u306e\u5206\u5e03\u3092\u8aac\u660e\u3057\u307e\u3059\u3002
\n\\[
\n\\nabla \\cdot \\mathbf{E} = \\frac{\\rho}{\\epsilon_0}
\n\\]
\n\u3053\u3053\u3067\u3001\\( \\rho \\) \u306f\u96fb\u8377\u5bc6\u5ea6\u3001 \\( \\epsilon_0 \\) \u306f\u771f\u7a7a\u306e\u8a98\u96fb\u7387\u3067\u3059\u3002<\/p>\n

2. \u30ac\u30a6\u30b9\u306e\u6cd5\u5247 (\u78c1\u5834)<\/h4>\n

\u78c1\u6c17\u5358\u6975\u5b50\u304c\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002
\n\\[
\n\\nabla \\cdot \\mathbf{B} = 0
\n\\]<\/p>\n

3. \u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u6cd5\u5247<\/h4>\n

\u6642\u9593\u7684\u306b\u5909\u5316\u3059\u308b\u78c1\u5834\u304c\u96fb\u5834\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002
\n\\[
\n\\nabla \\times \\mathbf{E} = -\\frac{\\partial \\mathbf{B}}{\\partial t}
\n\\]<\/p>\n

4. \u30a2\u30f3\u30da\u30fc\u30eb\u306e\u6cd5\u5247 (\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u4fee\u6b63\u3092\u542b\u3080)<\/h4>\n

\u6642\u9593\u7684\u306b\u5909\u5316\u3059\u308b\u96fb\u5834\u304a\u3088\u3073\u96fb\u6d41\u304c\u78c1\u5834\u3092\u751f\u6210\u3059\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002
\n\\[
\n\\nabla \\times \\mathbf{B} = \\mu_0 \\mathbf{J} + \\mu_0 \\epsilon_0 \\frac{\\partial \\mathbf{E}}{\\partial t}
\n\\]
\n\u3053\u3053\u3067\u3001\\( \\mu_0 \\) \u306f\u771f\u7a7a\u306e\u900f\u78c1\u7387\u3001 \\( \\mathbf{J} \\) \u306f\u96fb\u6d41\u5bc6\u5ea6\u3067\u3059\u3002<\/p>\n

\u5b9f\u7528\u6027<\/h3>\n

\u3053\u3053\u3067\u306f\u3001\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u304c\u3069\u306e\u3088\u3046\u306b\u73fe\u4ee3\u793e\u4f1a\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u308b\u304b\u306b\u3064\u3044\u3066\u8ff0\u3079\u307e\u3059\u3002<\/p>\n

1. \u901a\u4fe1\u6280\u8853<\/h4>\n

\u7121\u7dda\u901a\u4fe1\u3084\u885b\u661f\u901a\u4fe1\u3001Wi-Fi\u306a\u3069\u306e\u6280\u8853\u306f\u96fb\u78c1\u6ce2\u306e\u4f1d\u642c\u7406\u8ad6\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u96fb\u78c1\u6ce2\u304c\u3069\u306e\u3088\u3046\u306b\u7a7a\u9593\u3092\u4f1d\u308f\u308b\u304b\u3092\u660e\u78ba\u306b\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

2. \u96fb\u6c17\u56de\u8def\u8a2d\u8a08<\/h4>\n

\u96fb\u6c17\u56de\u8def\u3084\u96fb\u5b50\u6a5f\u5668\u306e\u8a2d\u8a08\u306b\u304a\u3044\u3066\u3001\u96fb\u5834\u3068\u78c1\u5834\u306e\u9593\u306e\u76f8\u4e92\u4f5c\u7528\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306f\u4e0d\u53ef\u6b20\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u9ad8\u901f\u30c7\u30b8\u30bf\u30eb\u4fe1\u53f7\u4f1d\u9001\u3084\u9ad8\u5468\u6ce2\u56de\u8def\u8a2d\u8a08\u306b\u304a\u3044\u3066\u3001\u30a8\u30cd\u30eb\u30ae\u30fc\u306e\u4f1d\u642c\u3084\u640d\u5931\u3092\u6b63\u78ba\u306b\u4e88\u6e2c\u3059\u308b\u305f\u3081\u306b\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u304c\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002<\/p>\n

3. \u533b\u7642\u6280\u8853<\/h4>\n

MRI\uff08\u78c1\u6c17\u5171\u9cf4\u753b\u50cf\uff09\u6280\u8853\u306f\u3001\u5f37\u529b\u306a\u78c1\u5834\u3068\u96fb\u78c1\u6ce2\u3092\u5229\u7528\u3057\u3066\u3001\u4f53\u5185\u306e\u8a73\u7d30\u306a\u753b\u50cf\u3092\u751f\u6210\u3057\u307e\u3059\u3002\u3053\u306e\u6280\u8853\u306f\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306b\u57fa\u3065\u3044\u3066\u3044\u307e\u3059\u3002<\/p>\n

4. \u5149\u5b66<\/h4>\n

\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u5149\u304c\u672c\u8cea\u7684\u306b\u96fb\u78c1\u6ce2\u3067\u3042\u308b\u3053\u3068\u3082\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u305f\u3081\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u901a\u4fe1\u3084\u30ec\u30fc\u30b6\u30fc\u6280\u8853\u3001\u305d\u306e\u4ed6\u306e\u5149\u5b66\u6a5f\u5668\u306e\u8a2d\u8a08\u306b\u3082\u5927\u3044\u306b\u5f79\u7acb\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u307e\u3068\u3081<\/h3>\n

\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u3001\u96fb\u6c17\u304a\u3088\u3073\u78c1\u6c17\u306e\u57fa\u672c\u7684\u306a\u539f\u7406\u3092\u660e\u78ba\u306b\u3059\u308b\u3060\u3051\u3067\u306a\u304f\u3001\u73fe\u4ee3\u793e\u4f1a\u306e\u3055\u307e\u3056\u307e\u306a\u6280\u8853\u306b\u6df1\u304f\u95a2\u308f\u3063\u3066\u3044\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u65b9\u7a0b\u5f0f\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u79c1\u305f\u3061\u306f\u96fb\u78c1\u6c17\u5b66\u306e\u7406\u8ad6\u7684\u306a\u57fa\u790e\u3092\u5b66\u3073\u3001\u591a\u304f\u306e\u5b9f\u751f\u6d3b\u306e\u554f\u984c\u3092\u89e3\u6c7a\u3059\u308b\u305f\u3081\u306e\u9053\u5177\u3092\u624b\u306b\u5165\u308c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u79d1\u5b66\u3068\u6280\u8853\u306e\u9032\u6b69\u306b\u304a\u3044\u3066\u3001\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306f\u4eca\u5f8c\u3082\u91cd\u8981\u306a\u5f79\u5272\u3092\u679c\u305f\u3059\u3053\u3068\u3067\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306e\u6982\u8981\u3068\u305d\u306e\u5b9f\u7528\u6027\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002\u96fb\u5834\u3068\u78c1\u5834\u306e\u57fa\u672c\u539f\u7406\u3092\u793a\u3057\u3001\u901a\u4fe1\u6280\u8853\u3001\u533b\u7642\u6280\u8853\u3001\u96fb\u6c17\u56de\u8def\u8a2d\u8a08\u306a\u3069\u3078\u306e\u5fdc\u7528\u3092\u7d39\u4ecb\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-209153","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\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f | \u6982\u8981\u3068\u5b9f\u7528\u6027<\/title>\n<meta name=\"description\" content=\"\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306e\u6982\u8981\u3068\u305d\u306e\u5b9f\u7528\u6027\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002\u96fb\u5834\u3068\u78c1\u5834\u306e\u57fa\u672c\u539f\u7406\u3092\u793a\u3057\u3001\u901a\u4fe1\u6280\u8853\u3001\u533b\u7642\u6280\u8853\u3001\u96fb\u6c17\u56de\u8def\u8a2d\u8a08\u306a\u3069\u3078\u306e\u5fdc\u7528\u3092\u7d39\u4ecb\u3057\u307e\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\/%e3%83%9e%e3%82%af%e3%82%b9%e3%82%a6%e3%82%a7%e3%83%ab%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%a6%82%e8%a6%81%e3%81%a8%e5%ae%9f%e7%94%a8%e6%80%a7\/\" \/>\n<meta property=\"og:locale\" content=\"ja_JP\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f | \u6982\u8981\u3068\u5b9f\u7528\u6027\" \/>\n<meta property=\"og:description\" content=\"\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u306e\u65b9\u7a0b\u5f0f\u306e\u6982\u8981\u3068\u305d\u306e\u5b9f\u7528\u6027\u306b\u3064\u3044\u3066\u89e3\u8aac\u3002\u96fb\u5834\u3068\u78c1\u5834\u306e\u57fa\u672c\u539f\u7406\u3092\u793a\u3057\u3001\u901a\u4fe1\u6280\u8853\u3001\u533b\u7642\u6280\u8853\u3001\u96fb\u6c17\u56de\u8def\u8a2d\u8a08\u306a\u3069\u3078\u306e\u5fdc\u7528\u3092\u7d39\u4ecb\u3057\u307e\u3059\u3002\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.electricity-magnetism.org\/ja\/%e3%83%9e%e3%82%af%e3%82%b9%e3%82%a6%e3%82%a7%e3%83%ab%e3%81%ae%e6%96%b9%e7%a8%8b%e5%bc%8f-%e6%a6%82%e8%a6%81%e3%81%a8%e5%ae%9f%e7%94%a8%e6%80%a7\/\" \/>\n<meta property=\"og:site_name\" content=\"Electricity - Magnetism\" \/>\n<meta property=\"article:published_time\" content=\"2024-03-21T14:06:18+00:00\" \/>\n<meta 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