{"id":561,"date":"2025-12-10T18:40:55","date_gmt":"2025-12-10T09:40:55","guid":{"rendered":"https:\/\/www.tenisyoku.com\/media\/?p=561"},"modified":"2025-12-10T19:33:52","modified_gmt":"2025-12-10T10:33:52","slug":"%e3%80%90%e7%ac%ac%e4%ba%8c%e7%a8%ae%e9%9b%bb%e6%b0%97%e5%b7%a5%e4%ba%8b%e5%a3%ab%e3%80%91%e8%a8%88%e7%ae%97%e5%95%8f%e9%a1%8c%e3%81%ae%e3%80%8c%e6%8a%b5%e6%8a%97%e7%8e%87%e3%80%8d%e3%82%92%e6%b1%82","status":"publish","type":"post","link":"https:\/\/www.tenisyoku.com\/media\/electrician\/dainishu-denki-kojishi\/561","title":{"rendered":"\u3010\u7b2c\u4e8c\u7a2e\u96fb\u6c17\u5de5\u4e8b\u58eb\u3011\u8a08\u7b97\u554f\u984c\u306e\u300c\u62b5\u6297\u7387\u300d\u3092\u6c42\u3081\u308b\u516c\u5f0f\u5909\u5f62\uff01\u5358\u4f4d\u5909\u63db\u306e\u60a9\u307f\u3092\u89e3\u6c7a\u3059\u308b\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"\n<div class=\"toc\">    <div id=\"toc_container\" class=\"sgb-toc--bullets js-smooth-scroll\" data-dialog-title=\"Table of Contents\">\n      <p class=\"toc_title\">\u76ee\u6b21 <span class=\"toc_toggle js-toc-toggle\" data-open-toggle=\"\u8868\u793a\" data-close-toggle=\"\u975e\u8868\u793a\">\u975e\u8868\u793a<\/span><\/p>\n      <ul class=\"toc_list js-toc-list\">  <li class=\"first\">    <a href=\"#i-0\">\u8a18\u4e8b\u3092\u8aad\u3080\u524d\u306b\uff01\u5b9f\u8df5\u30fb\u904e\u53bb\u554f\u30c1\u30e3\u30ec\u30f3\u30b8<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-1\">\u3010\u554f\u984c\u3011<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-2\">\u7b54\u3048\u306f\u6c7a\u307e\u308a\u307e\u3057\u305f\u304b\uff1f<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-3\">1. \u30ba\u30d0\u30ea\u3001\u6b63\u89e3\u306f\uff1f<\/a>  <\/li>  <li>    <a href=\"#i-4\">2. \u89e3\u8aac\uff1a3\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u5f0f\u3092\u5c0e\u3053\u3046<\/a>    <ul class=\"menu_level_1\">      <li class=\"first\">        <a href=\"#i-5\">\u30b9\u30c6\u30c3\u30d71\uff1a\u57fa\u672c\u516c\u5f0f\u3092\u601d\u3044\u51fa\u3059<\/a>      <\/li>      <li>        <a href=\"#i-6\">\u30b9\u30c6\u30c3\u30d72\uff1a\u65ad\u9762\u7a4d A \u3092\u76f4\u5f84 D \u3067\u8868\u3059<\/a>      <\/li>      <li>        <a href=\"#i-7\">\u30b9\u30c6\u30c3\u30d73\uff1a\u5358\u4f4d\u306e\u7f60\u300c10\u306e6\u4e57\u300d\u3092\u653b\u7565\u3059\u308b<\/a>      <\/li>      <li class=\"last\">        <a href=\"#i-8\">\u30b9\u30c6\u30c3\u30d74\uff1a\u5f0f\u3092\u7d44\u307f\u7acb\u3066\u308b<\/a>      <\/li>    <\/ul>  <\/li>  <li>    <a href=\"#i-9\">3. \u899a\u3048\u65b9\u306e\u30b3\u30c4<\/a>  <\/li>  <li class=\"last\">    <a href=\"#i-10\">\u307e\u3068\u3081<\/a>  <\/li><\/ul>\n      \n    <\/div><\/div><h2 class=\"wp-block-heading\" id=\"i-0\">\u8a18\u4e8b\u3092\u8aad\u3080\u524d\u306b\uff01\u5b9f\u8df5\u30fb\u904e\u53bb\u554f\u30c1\u30e3\u30ec\u30f3\u30b8<\/h2>\n\n\n\n<p>\u96fb\u6c17\u5de5\u4e8b\u58eb\u306e\u7b46\u8a18\u8a66\u9a13\u306b\u304a\u3044\u3066\u3001\u300c\u96fb\u6c17\u57fa\u790e\u7406\u8ad6\u300d\u306f\u6700\u521d\u306e\u9b3c\u9580\u306b\u306a\u308a\u304c\u3061\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u7279\u306b\u3001\u6570\u5f0f\u304c\u4e26\u3076\u8a08\u7b97\u554f\u984c\u3092\u898b\u308b\u3068\u300c\u96e3\u3057\u305d\u3046\u2026\u2026\u300d\u3068\u5f8c\u56de\u3057\u306b\u3057\u3066\u3057\u307e\u3046\u4eba\u3082\u591a\u3044\u306e\u3067\u306f\u306a\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n\n\n\n<p>\u3057\u304b\u3057\u3001\u4eca\u56de\u89e3\u8aac\u3059\u308b\u300c\u96fb\u7dda\u306e\u62b5\u6297\u7387\u300d\u3092\u6c42\u3081\u308b\u554f\u984c\u306f\u3001\u4e00\u5ea6\u7406\u5c48\u3092\u7406\u89e3\u3057\u3066\u3057\u307e\u3048\u3070\u3001\u6570\u5b57\u304c\u5909\u308f\u308b\u3060\u3051\u306e\u30d1\u30bf\u30fc\u30f3\u554f\u984c\u3068\u3057\u3066\u5f97\u70b9\u6e90\u306b\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5e73\u621026\u5e74\u3001\u4ee4\u548c3\u5e74\u3001\u4ee4\u548c6\u5e74\u3068\u7e70\u308a\u8fd4\u3057\u51fa\u984c\u3055\u308c\u3066\u3044\u308b\u983b\u51fa\u554f\u984c\u3067\u3059\u3002\u307e\u305a\u306f\u529b\u8a66\u3057\u3092\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-1\">\u3010\u554f\u984c\u3011<\/h3>\n\n\n\n<p>\u96fb\u6c17\u62b5\u6297 R [\u03a9]\u3001\u76f4\u5f84 D [mm]\u3001\u9577\u3055 L [m] \u306e\u5c0e\u7dda\u306e\u62b5\u6297\u7387 [\u03a9\u30fbm] \u3092\u8868\u3059\u5f0f\u306f\u3069\u308c\u304b\u3002<\/p>\n\n\n\n<p><img decoding=\"async\" width=\"150\" height=\"73\" class=\"wp-image-565\" style=\"width: 150px;\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.16.54@2x.png\" alt=\"\u9078\u629e\u80a21_\u5206\u6bcd\u304c4L\u00d710\u306e6\u4e57\u306e\u5f0f\" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.16.54@2x.png 644w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.16.54@2x-300x146.png 300w\" sizes=\"(max-width: 150px) 100vw, 150px\"><\/p>\n\n\n\n<p><img decoding=\"async\" width=\"150\" height=\"76\" class=\"wp-image-566\" style=\"width: 150px;\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.17.32@2x.png\" alt=\"\u5206\u6bcd\u304cL\u306e2\u4e57\u00d710\u306e6\u4e57\u306e\u5f0f \" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.17.32@2x.png 638w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.17.32@2x-300x151.png 300w\" sizes=\"(max-width: 150px) 100vw, 150px\"><\/p>\n\n\n\n<p><img decoding=\"async\" width=\"150\" height=\"73\" class=\"wp-image-568\" style=\"width: 150px;\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.17.59@2x.png\" alt=\"\u5206\u6bcd\u304c4L\u00d710\u306e3\u4e57\u306e\u5f0f\" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.17.59@2x.png 644w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.17.59@2x-300x146.png 300w\" sizes=\"(max-width: 150px) 100vw, 150px\"><\/p>\n\n\n\n<p><img decoding=\"async\" width=\"150\" height=\"73\" class=\"wp-image-569\" style=\"width: 150px;\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.18.30@2x.png\" alt=\"\u5206\u6bcd\u304c4L\u306e2\u4e57\u00d710\u306e3\u4e57\u306e\u5f0f\" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.18.30@2x.png 684w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.18.30@2x-300x146.png 300w\" sizes=\"(max-width: 150px) 100vw, 150px\"><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-2\">\u7b54\u3048\u306f\u6c7a\u307e\u308a\u307e\u3057\u305f\u304b\uff1f<\/h3>\n\n\n\n<p>\u9078\u629e\u80a2\u3092\u898b\u308b\u3068\u3001\u3069\u308c\u3082\u4f3c\u305f\u3088\u3046\u306a\u5f0f\u3067\u8ff7\u3063\u3066\u3057\u307e\u3044\u307e\u3059\u3088\u306d\u3002<\/p>\n\n\n\n<p>\u7279\u306b\u5206\u6bcd\u306b\u3042\u308b\u300c10\u306e6\u4e57\u300d\u3084\u300c10\u306e3\u4e57\u300d\u3068\u3044\u3063\u305f\u6570\u5b57\u3002\u3053\u308c\u304c\u3069\u3053\u304b\u3089\u6765\u305f\u306e\u304b\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u304c\u3001\u3053\u306e\u554f\u984c\u3092\u89e3\u304f\u30ab\u30ae\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u305d\u308c\u3067\u306f\u3001\u6b63\u89e3\u3068\u8a73\u3057\u3044\u89e3\u8aac\u3092\u898b\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-3\">1. \u30ba\u30d0\u30ea\u3001\u6b63\u89e3\u306f\uff1f<\/h2>\n\n\n\n<p>\u6b63\u89e3\u306f\u3001\u9078\u629e\u80a2\u306e 1 \u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"644\" height=\"314\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.16.54@2x.png\" alt=\"\u9078\u629e\u80a21_\u5206\u6bcd\u304c4L\u00d710\u306e6\u4e57\u306e\u5f0f\" class=\"wp-image-565\" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.16.54@2x.png 644w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.16.54@2x-300x146.png 300w\" sizes=\"(max-width: 644px) 100vw, 644px\"><\/figure>\n\n\n\n<p>\u306a\u305c\u3053\u306e\u5f0f\u306b\u306a\u308b\u306e\u304b\u3001\u9806\u3092\u8ffd\u3063\u3066\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e38\u6697\u8a18\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u3001L\u304c2\u4e57\u3060\u3063\u305f\u304b\u300110\u306e3\u4e57\u3060\u3063\u305f\u304b\u3068\u8a66\u9a13\u672c\u756a\u3067\u6df7\u4e71\u3057\u3066\u3057\u307e\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u300c\u306a\u305c\u305d\u3046\u306a\u308b\u306e\u304b\u300d\u3068\u3044\u3046\u5c0e\u304d\u65b9\u3092\u899a\u3048\u308b\u306e\u304c\u5408\u683c\u3078\u306e\u8fd1\u9053\u3067\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-4\">2. \u89e3\u8aac\uff1a3\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u5f0f\u3092\u5c0e\u3053\u3046<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"636\" height=\"350\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.32.07@2x.png\" alt=\"\u4f4e\u52b9\u7387\u306e\u516c\u5f0f\u5909\u63db\u306e\u9ed2\u677f\u89e3\u8aac\n\" class=\"wp-image-578\" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.32.07@2x.png 636w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.32.07@2x-300x165.png 300w\" sizes=\"(max-width: 636px) 100vw, 636px\"><\/figure>\n\n\n\n<p>\u3053\u306e\u554f\u984c\u3092\u89e3\u304f\u306b\u306f\u3001\u4ee5\u4e0b\u306e3\u3064\u306e\u8981\u7d20\u3092\u7406\u89e3\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>\u57fa\u672c\u306e\u62b5\u6297\u306e\u516c\u5f0f<\/li>\n\n\n\n<li>\u65ad\u9762\u7a4d\u306e\u6c42\u3081\u65b9\uff08\u76f4\u5f84\u304b\u3089\u9762\u7a4d\u3078\uff09<\/li>\n\n\n\n<li>\u5358\u4f4d\u5909\u63db\uff08mm2 \u304b\u3089 m2 \u3078\uff09<\/li>\n<\/ol>\n\n\n\n<p>\u3072\u3068\u3064\u305a\u3064\u7d10\u89e3\u3044\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-5\">\u30b9\u30c6\u30c3\u30d71\uff1a\u57fa\u672c\u516c\u5f0f\u3092\u601d\u3044\u51fa\u3059<\/h3>\n\n\n\n<p>\u307e\u305a\u3001\u96fb\u7dda\u306e\u62b5\u6297 R \u3092\u6c42\u3081\u308b\u57fa\u672c\u306e\u516c\u5f0f\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u300c\u62b5\u6297\u306f\u9577\u3055\u306b\u6bd4\u4f8b\u3057\u3001\u65ad\u9762\u7a4d\u306b\u53cd\u6bd4\u4f8b\u3059\u308b\u300d\u3068\u3044\u3046\u6cd5\u5247\u3067\u3059\u306d\u3002<\/p>\n\n\n\n<p><img decoding=\"async\" width=\"150\" height=\"78\" class=\"wp-image-572\" style=\"width: 150px;\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.20.40@2x.png\" alt=\"\u57fa\u672c\u516c\u5f0f R = \u03c1 \u00d7 L \/ A\" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.20.40@2x.png 1472w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.20.40@2x-300x156.png 300w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.20.40@2x-1024x531.png 1024w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.20.40@2x-768x399.png 768w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.20.40@2x-940x488.png 940w\" sizes=\"(max-width: 150px) 100vw, 150px\"><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>R\uff1a\u96fb\u6c17\u62b5\u6297 [\u03a9]<\/li>\n\n\n\n<li>\u03c1\uff08\u30ed\u30fc\uff09\uff1a\u62b5\u6297\u7387 [\u03a9\u30fbm]<\/li>\n\n\n\n<li>L\uff1a\u9577\u3055 [m]<\/li>\n\n\n\n<li>A\uff1a\u65ad\u9762\u7a4d [m2]<\/li>\n<\/ul>\n\n\n\n<p>\u4eca\u56de\u306f\u300c\u62b5\u6297\u7387 \u03c1\u300d\u3092\u6c42\u3081\u308b\u554f\u984c\u306a\u306e\u3067\u3001\u3053\u306e\u5f0f\u3092 \u03c1 = \u306e\u5f62\u306b\u5909\u5f62\u3057\u3066\u304a\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e21\u8fba\u306b A\/L \u3092\u639b\u3051\u308b\u3068\u3001\u03c1 \u3060\u3051\u304c\u6b8b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><img decoding=\"async\" width=\"150\" height=\"75\" class=\"wp-image-573\" style=\"width: 150px;\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.21.52@2x.png\" alt=\"\u5f0f\u5909\u5f62 \u03c1 = (R \u00d7 A) \/ L\" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.21.52@2x.png 624w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.21.52@2x-300x151.png 300w\" sizes=\"(max-width: 150px) 100vw, 150px\"><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-6\">\u30b9\u30c6\u30c3\u30d72\uff1a\u65ad\u9762\u7a4d A \u3092\u76f4\u5f84 D \u3067\u8868\u3059<\/h3>\n\n\n\n<p>\u554f\u984c\u6587\u306b\u306f\u300c\u65ad\u9762\u7a4d A\u300d\u3067\u306f\u306a\u304f\u3001\u300c\u76f4\u5f84 D\u300d\u304c\u4e0e\u3048\u3089\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u5186\u306e\u9762\u7a4d\u3092\u6c42\u3081\u308b\u516c\u5f0f\u3092\u601d\u3044\u51fa\u3057\u307e\u3057\u3087\u3046\u3002\u534a\u5f84\u3092 r \u3068\u3059\u308b\u3068 \u03c0r2 \u3067\u3059\u306d\u3002<\/p>\n\n\n\n<p>\u76f4\u5f84 D \u3092\u4f7f\u3046\u3068\u3001\u534a\u5f84\u306f D\/2 \u306a\u306e\u3067\u3001\u65ad\u9762\u7a4d A \u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><img decoding=\"async\" width=\"150\" height=\"50\" class=\"wp-image-574\" style=\"width: 150px;\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.23.12@2x.png\" alt=\"\u65ad\u9762\u7a4d\u306e\u5f0f A = \u03c0(D\/2)^2 = \u03c0D^2 \/ 4\" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.23.12@2x.png 1380w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.23.12@2x-300x99.png 300w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.23.12@2x-1024x338.png 1024w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.23.12@2x-768x254.png 768w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.23.12@2x-940x311.png 940w\" sizes=\"(max-width: 150px) 100vw, 150px\"><\/p>\n\n\n\n<p>\u3053\u308c\u3092\u30b9\u30c6\u30c3\u30d71\u306e\u5f0f\u306b\u4ee3\u5165\u3059\u308c\u3070\u826f\u3055\u305d\u3046\u3067\u3059\u304c\u3001\u3053\u3053\u3067\u3010\u6700\u5927\u306e\u843d\u3068\u3057\u7a74\u3011\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-7\">\u30b9\u30c6\u30c3\u30d73\uff1a\u5358\u4f4d\u306e\u7f60\u300c10\u306e6\u4e57\u300d\u3092\u653b\u7565\u3059\u308b<\/h3>\n\n\n\n<p>\u3053\u3053\u304c\u3053\u306e\u554f\u984c\u306e\u4e00\u756a\u306e\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002\u5358\u4f4d\u3092\u3088\u304f\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u554f\u984c\u6587\u306e\u76f4\u5f84 D \u306e\u5358\u4f4d\u306f\u3010mm\u3011<\/li>\n\n\n\n<li>\u62b5\u6297\u7387\u306e\u5358\u4f4d\u306f\u3010m\u3011<\/li>\n<\/ul>\n\n\n\n<p>\u516c\u5f0f\u306e\u4e2d\u3067\u8a08\u7b97\u3059\u308b\u306b\u306f\u3001\u5358\u4f4d\u3092\u3010m\u3011\uff08\u30e1\u30fc\u30c8\u30eb\uff09\u306b\u7d71\u4e00\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<p>\u9762\u7a4d\u306e\u5358\u4f4d\u3067\u3042\u308b [mm2] \u3092 [m2] \u306b\u76f4\u3059\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1 m = 1000 mm<\/li>\n\n\n\n<li>1 m2 = 1,000,000 mm2 \uff081000 \u00d7 1000\uff09<\/li>\n<\/ul>\n\n\n\n<p>\u3064\u307e\u308a\u30011 mm2 \u306f 1 m2 \u306e100\u4e07\u5206\u306e1\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u6570\u5f0f\u3067\u66f8\u304f\u3068\u3001\u300c10\u306e\u30de\u30a4\u30ca\u30b96\u4e57\u300d\u3092\u639b\u3051\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p><img decoding=\"async\" width=\"150\" height=\"29\" class=\"wp-image-575\" style=\"width: 150px;\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.24.35@2x.png\" alt=\"\u5358\u4f4d\u5909\u63db\u5f0f 1mm2 = 10^-6 m2\" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.24.35@2x.png 1388w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.24.35@2x-300x59.png 300w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.24.35@2x-1024x201.png 1024w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.24.35@2x-768x151.png 768w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.24.35@2x-940x184.png 940w\" sizes=\"(max-width: 150px) 100vw, 150px\"><\/p>\n\n\n\n<p>\u5148\u307b\u3069\u6c42\u3081\u305f\u65ad\u9762\u7a4d\u306e\u5f0f\u306b\u3001\u3053\u306e\u5358\u4f4d\u5909\u63db\u3092\u9069\u7528\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"i-8\">\u30b9\u30c6\u30c3\u30d74\uff1a\u5f0f\u3092\u7d44\u307f\u7acb\u3066\u308b<\/h3>\n\n\n\n<p>\u6e96\u5099\u306f\u6574\u3044\u307e\u3057\u305f\u3002<\/p>\n\n\n\n<p>\u30b9\u30c6\u30c3\u30d71\u3067\u4f5c\u3063\u305f\u5f0f\u306b\u3001\u5358\u4f4d\u5909\u63db\u3057\u305f\u65ad\u9762\u7a4d\u3092\u4ee3\u5165\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li>\u5206\u5b50\u306b\u306f\u3001\u5186\u5468\u7387 \u03c0\u3001\u76f4\u5f84 D \u306e2\u4e57\u3001\u62b5\u6297 R \u304c\u4e57\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u5206\u6bcd\u306b\u306f\u3001\u534a\u5f84\u8a08\u7b97\u3067\u51fa\u305f 4 \u3068\u3001\u9577\u3055 L \u304c\u6765\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u305d\u3057\u3066\u3001\u5358\u4f4d\u5909\u63db\u306e\u305f\u3081\u306e 10\u306e6\u4e57 \u304c\u5206\u6bcd\u306b\u6765\u307e\u3059\u3002<\/li>\n<\/ol>\n\n\n\n<p>\u6570\u5f0f\u3092\u6574\u7406\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\uff08\u5206\u5b50\u306b\u3042\u308b10\u306e\u30de\u30a4\u30ca\u30b96\u4e57\u306f\u3001\u5206\u6bcd\u306e10\u306e\u30d7\u30e9\u30b96\u4e57\u3068\u540c\u3058\u610f\u5473\u3067\u3059\uff09<\/p>\n\n\n\n<p><img decoding=\"async\" width=\"150\" height=\"73\" class=\"wp-image-576\" style=\"width: 150px;\" src=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.25.40@2x.png\" alt=\"\u6b63\u89e3\u306e\u5f0f \u03c1 = (\u03c0D^2R) \/ (4L \u00d7 10^6)\" srcset=\"https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.25.40@2x.png 1466w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.25.40@2x-300x147.png 300w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.25.40@2x-1024x500.png 1024w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.25.40@2x-768x375.png 768w, https:\/\/www.tenisyoku.com\/media\/wp-content\/uploads\/2025\/12\/CleanShot-2025-12-10-at-19.25.40@2x-940x459.png 940w\" sizes=\"(max-width: 150px) 100vw, 150px\"><\/p>\n\n\n\n<p>\u3053\u308c\u304c\u9078\u629e\u80a2 1 \u306e\u5f62\u3068\u4e00\u81f4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-9\">3. \u899a\u3048\u65b9\u306e\u30b3\u30c4<\/h2>\n\n\n\n<p>\u8a66\u9a13\u672c\u756a\u3067\u8ff7\u308f\u306a\u3044\u305f\u3081\u306b\u3001\u4ee5\u4e0b\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u30c1\u30a7\u30c3\u30af\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3010D\u306f2\u4e57\u304b\uff1f\u3011\u9762\u7a4d\u306e\u8a08\u7b97\u306a\u306e\u3067\u3001\u76f4\u5f84 D \u306f\u5fc5\u305a2\u4e57\u306b\u306a\u308a\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u3010\u5206\u6bcd\u306b4\u304c\u3042\u308b\u304b\uff1f\u3011\u534a\u5f84\uff08D\/2\uff09\u30922\u4e57\u3059\u308b\u306e\u3067\u3001\u5206\u6bcd\u306b4\u304c\u51fa\u3066\u304d\u307e\u3059\u3002<\/li>\n\n\n\n<li>\u3010\u5206\u6bcd\u306b10\u306e6\u4e57\u304c\u3042\u308b\u304b\uff1f\u3011mm \u3092 m \u306b\u76f4\u3057\u30662\u4e57\u3059\u308b\u306e\u3067\u30010\u304c6\u500b\u5206\u306e\u88dc\u6b63\u304c\u5fc5\u8981\u3067\u3059\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"i-10\">\u307e\u3068\u3081<\/h2>\n\n\n\n<p>\u3053\u306e\u554f\u984c\u304c\u51fa\u305f\u3089\u3001\u307e\u305a\u306f\u5206\u6bcd\u306b\u300c10\u306e6\u4e57\u300d\u304c\u3042\u308b\u9078\u629e\u80a2\u3092\u63a2\u3057\u307e\u3057\u3087\u3046\u3002\u305d\u308c\u3060\u3051\u3067\u9078\u629e\u80a2\u3092\u7d5e\u308a\u8fbc\u3080\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u96fb\u6c17\u5de5\u4e8b\u58eb\u306e\u8a66\u9a13\u3067\u306f\u3001\u3053\u306e\u3088\u3046\u306b\u300c\u5358\u4f4d\u300d\u3084\u300c\u516c\u5f0f\u306e\u5909\u5f62\u300d\u3092\u554f\u3046\u554f\u984c\u304c\u3088\u304f\u51fa\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u4e38\u6697\u8a18\u3067\u306f\u306a\u304f\u7406\u5c48\u3092\u4e00\u5ea6\u7d0d\u5f97\u3057\u3066\u304a\u3051\u3070\u3001\u8a66\u9a13\u5f53\u65e5\u306b\u30c9\u5fd8\u308c\u3057\u3066\u3082\u81ea\u5206\u3067\u5f0f\u3092\u5c0e\u304d\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3088\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\">\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u6b21 \u975e\u8868\u793a \u8a18\u4e8b\u3092\u8aad\u3080\u524d\u306b\uff01\u5b9f\u8df5\u30fb\u904e\u53bb\u554f\u30c1\u30e3\u30ec\u30f3\u30b8 \u3010\u554f\u984c\u3011 \u7b54\u3048\u306f\u6c7a\u307e\u308a\u307e\u3057\u305f\u304b\uff1f 1. \u30ba\u30d0\u30ea\u3001\u6b63\u89e3\u306f\uff1f 2. \u89e3\u8aac\uff1a3\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u3067\u5f0f\u3092\u5c0e\u3053\u3046 \u30b9\u30c6\u30c3\u30d71\uff1a\u57fa\u672c\u516c\u5f0f\u3092\u601d\u3044\u51fa\u3059 \u30b9\u30c6\u30c3\u30d72\uff1a\u65ad\u9762\u7a4d A \u3092\u76f4\u5f84 D  &#8230; <\/p>\n","protected":false},"author":1,"featured_media":581,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[15],"class_list":{"0":"post-561","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-dainishu-denki-kojishi","8":"tag-15"},"_links":{"self":[{"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/posts\/561","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/comments?post=561"}],"version-history":[{"count":5,"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/posts\/561\/revisions"}],"predecessor-version":[{"id":580,"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/posts\/561\/revisions\/580"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/media\/581"}],"wp:attachment":[{"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/media?parent=561"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/categories?post=561"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tenisyoku.com\/media\/wp-json\/wp\/v2\/tags?post=561"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}