{"id":143706,"date":"2024-01-14T13:19:23","date_gmt":"2024-01-14T13:19:23","guid":{"rendered":"https:\/\/www.electricity-magnetism.org\/%e7%a3%81%e5%a0%b4%e3%82%92%e8%a8%88%e7%ae%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%99%e3%82%8c%e3%81%b0%e3%82%88%e3%81%84%e3%81%a7%e3%81%99%e3%81%8b-%e6%96%b9%e7%a8%8b\/"},"modified":"2024-02-21T19:47:41","modified_gmt":"2024-02-21T19:47:41","slug":"%e7%a3%81%e5%a0%b4%e3%82%92%e8%a8%88%e7%ae%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%99%e3%82%8c%e3%81%b0%e3%82%88%e3%81%84%e3%81%a7%e3%81%99%e3%81%8b-%e6%96%b9%e7%a8%8b","status":"publish","type":"post","link":"https:\/\/www.electricity-magnetism.org\/ja\/%e7%a3%81%e5%a0%b4%e3%82%92%e8%a8%88%e7%ae%97%e3%81%99%e3%82%8b%e3%81%ab%e3%81%af%e3%81%a9%e3%81%86%e3%81%99%e3%82%8c%e3%81%b0%e3%82%88%e3%81%84%e3%81%a7%e3%81%99%e3%81%8b-%e6%96%b9%e7%a8%8b\/","title":{"rendered":"\u78c1\u5834\u3092\u8a08\u7b97\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b? 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\/>\n\u5f0f\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<br \/>\nB = (\u03bc<sub>0<\/sub> \/ 4\u03c0) * \u222b(Idl x r\u0302) \/ r<sup>2<\/sup><\/li>\n<li><strong>\u30a2\u30f3\u30da\u30fc\u30eb\u306e\u6cd5\u5247<\/strong>\uff1a\u9589\u3058\u305f\u30eb\u30fc\u30d7\u5468\u308a\u306e\u78c1\u5834(B)\u3068\u3001\u30eb\u30fc\u30d7\u3092\u901a\u904e\u3059\u308b\u5168\u96fb\u6d41(I)\u3068\u306e\u95a2\u4fc2\u3092\u8a18\u8ff0\u3057\u307e\u3059\u3002<br \/>\n\u5f0f\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<br \/>\n\u222eB \u2022 dl = \u03bc<sub>0<\/sub>I<\/li>\n<li><strong>\u78c1\u6c17\u306b\u95a2\u3059\u308b\u30ac\u30a6\u30b9\u306e\u6cd5\u5247<\/strong>\uff1a\u9589\u3058\u305f\u8868\u9762\u3092\u901a\u308b\u6b63\u5473\u306e\u78c1\u675f\u304c\u30bc\u30ed\u3067\u3042\u308b\u3053\u3068\u3092\u8ff0\u3079\u3066\u3044\u307e\u3059\u3002<br \/>\n\u6570\u5b66\u7684\u306b\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u73fe\u3055\u308c\u307e\u3059\uff1a<br \/>\n\u222eB \u2022 dA = 0<\/li>\n<li><strong>\u30d5\u30a1\u30e9\u30c7\u30fc\u306e\u96fb\u78c1\u8a98\u5c0e\u306e\u6cd5\u5247<\/strong>\uff1a\u6642\u9593\u5909\u5316\u3059\u308b\u78c1\u5834\u304c\u9589\u56de\u8def\u306b\u96fb\u52d5\u529b\uff08EMF\uff09\u3092\u8a98\u5c0e\u3059\u308b\u3068\u8ff0\u3079\u3066\u3044\u307e\u3059\u3002<br \/>\n\u5f0f\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\uff1a<br \/>\nEMF = -d\u03a6<sub>B<\/sub>\/dt<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u6cd5\u5247\u3068\u65b9\u7a0b\u5f0f\u306f\u3001\u3055\u307e\u3056\u307e\u306a\u72b6\u6cc1\u3067\u78c1\u5834\u3092\u8a08\u7b97\u3059\u308b\u57fa\u76e4\u3092\u5f62\u6210\u3057\u307e\u3059\u3002\u3055\u3089\u306b\u3001\u7279\u5b9a\u306e\u5e7e\u4f55\u5b66\u7684\u5f62\u72b6\u3084\u914d\u7f6e\u306b\u304a\u3051\u308b\u7c21\u5358\u306a\u78c1\u5834\u8a08\u7b97\u306e\u305f\u3081\u306e\u7279\u5b9a\u306e\u516c\u5f0f\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<h2>\u78c1\u5834\u306e\u8a08\u7b97\u65b9\u6cd5<\/h2>\n<p>\u78c1\u5834\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\u306f\u3001\u78c1\u5834\u306e\u6e90\u3068\u7279\u5b9a\u306e\u30b7\u30ca\u30ea\u30aa\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306f\u3001\u78c1\u5834\u3092\u8a08\u7b97\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u3044\u304f\u3064\u304b\u306e\u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9\u3068\u5f0f\u3067\u3059\u3002<\/p>\n<ul>\n<li><strong>\u76f4\u7dda\u96fb\u6d41\u3092\u6301\u3064\u7dda\u304b\u3089\u306e\u78c1\u5834<\/strong>\uff1a<br \/>\nB = (\u03bc<sub>0<\/sub> * I) \/ (2 * \u03c0 * r)<\/li>\n<li><strong>\u5186\u5f62\u96fb\u6d41\u30eb\u30fc\u30d7\u306e\u4e2d\u5fc3\u306e\u78c1\u5834<\/strong>\uff1a<br \/>\nB = (\u03bc<sub>0<\/sub> * I) \/ (2 * R)<\/li>\n<li><strong>\u30bd\u30ec\u30ce\u30a4\u30c9\uff08\u96fb\u7dda\u306e\u30b3\u30a4\u30eb\uff09\u306b\u3088\u308b\u78c1\u5834<\/strong>\uff1a<br \/>\nB = \u03bc<sub>0<\/sub> * n * I<\/li>\n<\/ul>\n<p>\u3053\u308c\u3089\u306e\u5f0f\u306f\u3001\u96fb\u6d41\u3068\u305d\u308c\u306b\u3088\u3063\u3066\u751f\u6210\u3055\u308c\u308b\u78c1\u5834\u3068\u306e\u95a2\u4fc2\u3092\u8a18\u8ff0\u3059\u308b\u30a2\u30f3\u30da\u30fc\u30eb\u306e\u6cd5\u5247\u3068\u30d3\u30aa\u30fb\u30b5\u30d0\u30fc\u30eb\u306e\u6cd5\u5247\u304b\u3089\u5c0e\u51fa\u3055\u308c\u307e\u3059\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricity-magnetism.org\/wp-content\/uploads\/2022\/01\/logo.png\" alt=\"How to calculate a magnetic field?\" \/><\/p>\n<div style=\"text-align: center; font-size: 20px;\">\n    <a href=\"https:\/\/www.electricity-magnetism.org\/how-to-calculate-a-magnetic-field\/\">Original Article<\/a>\n<\/div>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u78c1\u5834\u306e\u8a08\u7b97\u306f\u3001\u78c1\u5834\u306e\u767a\u751f\u6e90\u3068\u7279\u5b9a\u306e\u30b7\u30ca\u30ea\u30aa\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002 \u3053\u3053\u3067\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u4e00\u822c\u7684\u306a\u30b1\u30fc\u30b9\u3068\u78c1\u5834\u306e\u8a08\u7b97\u306b\u4f7f\u7528\u3055\u308c\u308b\u5f0f\u3092\u793a\u3057\u307e\u3059\u3002<\/p>\n","protected":false},"author":1,"featured_media":1579,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","footnotes":""},"categories":[13],"tags":[],"class_list":["post-143706","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-13","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u78c1\u5834\u3092\u8a08\u7b97\u3059\u308b\u306b\u306f\u3069\u3046\u3059\u308c\u3070\u3088\u3044\u3067\u3059\u304b? | \u65b9\u7a0b\u5f0f\u3068\u6cd5\u5247<\/title>\n<meta name=\"description\" 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