{"id":6765,"date":"2025-03-24T15:26:30","date_gmt":"2025-03-24T06:26:30","guid":{"rendered":"https:\/\/torisetudy.com\/?p=6765"},"modified":"2025-03-24T15:26:34","modified_gmt":"2025-03-24T06:26:34","slug":"%e9%9b%bb%e5%a0%b4%e3%81%ae%e9%87%8d%e3%81%ad%e5%90%88%e3%82%8f%e3%81%9b","status":"publish","type":"post","link":"https:\/\/torisetudy.com\/?p=6765","title":{"rendered":"\u96fb\u5834\u306e\u91cd\u306d\u5408\u308f\u305b"},"content":{"rendered":"\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u76ee\u6b21<\/p><ul class=\"toc_list\"><li><a href=\"#i\"><span class=\"toc_number toc_depth_1\">1<\/span> \u96fb\u5834\u306e\u91cd\u306d\u5408\u308f\u305b<\/a><\/li><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_1\">2<\/span> \u4f8b\u984c<\/a><\/li><\/ul><\/div>\n<h2 class=\"wp-block-heading\"><span id=\"i\">\u96fb\u5834\u306e\u91cd\u306d\u5408\u308f\u305b<\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">\u8907\u6570\u306e\u96fb\u5834\u306e\u6271\u3044<\/h3>\n\n\n\n<p>\u8907\u6570\u306e\u96fb\u8377\u306b\u3088\u308b\u96fb\u5834\uff08$\\vec{E_1},\\,\\vec{E_2},\\,\\vec{E_3},\\,\\ldots$\uff09\u304c\u5b58\u5728\u3059\u308b\u3068\u304d\uff0c\u3053\u308c\u3089\u3092\u5408\u6210\u3057\u305f\u96fb\u5834\u306f\u3069\u306e\u3088\u3046\u306b\u8003\u3048\u3089\u308c\u308b\u3067\u3057\u3087\u3046\u304b\u2026\uff1f<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon3 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u3053\u306e\u5834\u5408\u3082\u3084\u306f\u308a $+1\\C$ \u306e\u96fb\u8377\u3092\u304a\u3044\u3066\u8003\u3048\u308c\u3070ok\u3067\u3059\u3002<\/p>\n<\/div><\/div><\/div><div class=\"st-kaiwa-face2\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u6319\u624b\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u6319\u624b\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<p>\u3053\u306e\u96fb\u8377\u304c\u96fb\u5834 $\\vec{E_1}$ \u304b\u3089\u53d7\u3051\u308b\u529b\u306f $\\vec{E_1}$\uff0c\u96fb\u5834 $\\vec{E_2}$ \u304b\u3089\u53d7\u3051\u308b\u529b\u306f $\\vec{E_2}$\uff0c\u3068\u3057\u3066\u8003\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u7d50\u5c40\uff0c\u96fb\u8377\u304c\u53d7\u3051\u308b\u5408\u529b\u306f\uff0c<\/p>\n\n\n\n<p>$$\\vec{f}=\\vec{E_1}+\\vec{E_2}+\\vec{E_3}+\\cdots$$<\/p>\n\n\n\n<p>\u3067\u3059\u3002\u3053\u306e\u5408\u529b $\\vec{f}$ \u304c\uff0c\u305d\u306e\u5834\u6240\u306b\u304a\u3051\u308b\u5b9f\u969b\u306e\u96fb\u5834\uff08\u5408\u6210\u96fb\u5834\uff09\u306b\u306a\u308a\u307e\u3059\u306e\u3067\uff0c<\/p>\n\n\n\n<p>$$\\vec{E}=\\vec{E_1}+\\vec{E_2}+\\vec{E_3}+\\cdots$$<\/p>\n\n\n\n<p>\u3068\u8003\u3048\u3066ok\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3064\u307e\u308a\uff0c<span class=\"st-mymarker-s\">\u96fb\u5834\u306e\u91cd\u306d\u5408\u308f\u305b\u306f\uff0c\u5358\u7d14\u306b\u8db3\u3057\u7b97\u3067\u8003\u3048\u3066\u3088\u3044<\/span> \u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n    <div class=\"wp-block-st-blocks-point-box st-point-box has-title post-hashiro-point\" style=\"\n        background-color:#fff; \n        border: 2px solid #ff7f50; \n        padding: 0px 18px; \n        border-radius: 4pt; \n        position: relative;\">\n        \n        <p class=\"st-mybox-title\" style=\"\n            position: absolute; \n            top: -12px; \n            left: 12px; \n            background-color: #fff; \n            padding: 0 10px; \n            color: #ff7f50; \n            font-weight: bold; \n            font-size: 15px; \n            line-height: 1.5; \n            text-decoration: none;\n            margin-bottom: 20px; \n            display: flex; \n            align-items: center; \n            gap: 5px;\">\n            <i class=\"st-fa st-svg-lightbulb-o st-css-no\" aria-hidden=\"true\"><\/i> \u96fb\u5834\u306e\u91cd\u306d\u5408\u308f\u305b\n        <\/p>\n\n        <div class=\"st-in-point-box\" style=\"\n            margin-top: 0px; \n            margin-bottom: 0px;\n            padding-top: 0px;\n            padding-bottom: 30px;\">\n            <p style=\"margin-bottom: -10px !important;\">\u8907\u6570\u306e\u96fb\u5834\u306e\u91cd\u306d\u5408\u308f\u305b\u306f\uff0c\u5358\u7d14\u548c\u3092\u53d6\u3063\u3066\uff0c<\/p><\/p><p style=\"margin-bottom: -10px !important;\"><p>$$\\vec{E}=\\vec{E_1}+\\vec{E_2}+\\vec{E_3}+\\cdots$$<\/p><\/p><p style=\"margin-bottom: -10px !important;\"><p>\u3068\u8a08\u7b97\u3067\u304d\u308b\u3002<\/p>\n        <\/div>\n    <\/div>\n\n\n\n<h2 class=\"wp-block-heading\"><span id=\"i-2\">\u4f8b\u984c<\/span><\/h2>\n\n\n\n    <div class=\"wp-block-st-blocks-midashi-box freebox has-title post-hashiro-reidai\" style=\"\n        background-color:#f7f7fb; \n        border-width: 3px; \n        border-color:#a3bded;\">\n        \n        <p class=\"p-free\" style=\"\n            border-color:#a3bded; \n            font-weight: bold;\">\n            <span class=\"p-entry-f\" style=\"\n                color:#ffffff; \n                font-weight: bold; \n                background-color:#a3bded;\">\n                <i class=\"st-fa st-svg-pencil st-css-no\" aria-hidden=\"true\"><\/i> \u4f8b\u984c\n            <\/span>\n        <\/p>\n\n        <div class=\"free-inbox\" style=\"\n            margin-top: 0px; \n            margin-bottom: 0px;\n            padding: 10px 15px;\">\n            <p>$x$ \u8ef8\u4e0a\u306e\u539f\u70b9 $\\rmO$ \u306b $+q$ \u306e\u96fb\u8377 $\\rmA$ \u304c\uff0c$x=4$ \u306e\u4f4d\u7f6e\u306b $-4q$ \u306e\u96fb\u8377 $\\rmB$ \u304c\u304a\u304b\u308c\u3066\u3044\u308b\u3002\u30af\u30fc\u30ed\u30f3\u306e\u6cd5\u5247\u306e\u6bd4\u4f8b\u5b9a\u6570\u3092 $k$ \u3068\u3057\u3066\uff0c\u4ee5\u4e0b\u306e\u554f\u3044\u306b\u7b54\u3048\u3088\u3002<\/p><\/p><p><p class=\"setumonnkakko\">$x=2$ \u306e\u4f4d\u7f6e\u306b\u96fb\u8377 $\\rmA$ \u304c\u4f5c\u308b\u96fb\u5834 $E_1$ \u3092\u6c42\u3081\u3088\u3002<\/p><\/p><p><p class=\"setumonnkakko\">$x=2$ \u306e\u4f4d\u7f6e\u306e\u96fb\u5834 $E$ \u3092\u6c42\u3081\uff0c\u3053\u306e\u4f4d\u7f6e\u306b $q$ \u306e\u96fb\u8377\u3092\u304a\u3044\u305f\u3068\u304d\u306b\u53d7\u3051\u308b\u529b\u3092\u6c42\u3081\u3088\u3002<\/p><\/p><p><p class=\"setumonnkakko\">$x$ \u8ef8\u4e0a\u306b\u304a\u3044\u3066\uff0c\u7121\u9650\u9060\u65b9\u4ee5\u5916\u3067\u96fb\u5834\u306e\u5927\u304d\u3055\u304c $0$ \u3068\u306a\u308b\u70b9\u3092\u6c42\u3081\u3088\u3002<\/p><\/p><p><p><figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"163\" height=\"75\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406815.svg\" alt=\"\u7269\u7406815\" class=\"wp-image-6497\"\/><noscript><img decoding=\"async\" width=\"163\" height=\"75\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406815.svg\" alt=\"\u7269\u7406815\" class=\"wp-image-6497\"\/><\/noscript><\/figure><\/p>\n        <\/div>\n    <\/div>\n\n\n\n<h3 class=\"wp-block-heading\">(1) \u306e\u89e3\u304d\u65b9<\/h3>\n\n\n\n<p>\u96fb\u8377 $\\rmA$ \u306e\u4f5c\u308b\u96fb\u5834\u3092\u8003\u3048\u308b\u306e\u3067\uff0c\u3044\u3063\u305f\u3093\u96fb\u8377 $\\rmB$ \u306e\u3053\u3068\u306f\u5fd8\u308c\u307e\u3059\uff01<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u5b9f\u969b\u306b\uff0c$x=2$ \u306e\u4f4d\u7f6e\u306b $+1\\C$ \u306e\u96fb\u8377\uff08\u5358\u4f4d\u96fb\u8377\uff09\u3092\u304a\u3044\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"163\" height=\"74\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406816.svg\" alt=\"\u7269\u7406816\" class=\"wp-image-6498\"\/><noscript><img decoding=\"async\" width=\"163\" height=\"74\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406816.svg\" alt=\"\u7269\u7406816\" class=\"wp-image-6498\"\/><\/noscript><\/figure>\n\n\n\n<p>\u30af\u30fc\u30ed\u30f3\u306e\u6cd5\u5247\u304b\u3089\uff0c\u529b\u306e\u5927\u304d\u3055\u306f\uff0c<\/p>\n\n\n\n<p>$$f=k\\bun{q\\cdot1}{2^2}=k\\bun{q}{4}$$<\/p>\n\n\n\n<p>\u3067\u3059\u3002\u6b63\u306e\u96fb\u8377\u540c\u58eb\u3067\u65a5\u529b\u3068\u306a\u3063\u3066\u3044\u307e\u3059\u306e\u3067\uff0c\u3053\u306e\u529b\u306e\u5411\u304d\u306f $x$ \u8ef8\u6b63\u306e\u5411\u304d\u306b\u4e00\u81f4\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3088\u3063\u3066\u7b26\u53f7\u3082\u542b\u3081\u3066\uff0c<\/p>\n\n\n\n<p>$$E_1=k\\Bun{q}{4}$$<\/p>\n\n\n\n<p>\u304c\u7b54\u3048\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(2) \u306e\u89e3\u304d\u65b9<\/h3>\n\n\n\n<p>\u7d9a\u3044\u3066\uff0c$x=2$ \u306e\u4f4d\u7f6e\u306b\u96fb\u8377 $\\rmB$ \u304c\u4f5c\u308b\u96fb\u5834 $E_2$ \u3092\u6c42\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p> (1) \u3068\u540c\u69d8\u306b\uff0c\u5b9f\u969b\u306b\u5358\u4f4d\u96fb\u8377\u3092\u304a\u3044\u3066\u8003\u3048\u307e\u3059\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"163\" height=\"73\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406817.svg\" alt=\"\u7269\u7406817\" class=\"wp-image-6499\"\/><noscript><img decoding=\"async\" width=\"163\" height=\"73\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406817.svg\" alt=\"\u7269\u7406817\" class=\"wp-image-6499\"\/><\/noscript><\/figure>\n\n\n\n<p>\u96fb\u8377\u540c\u58eb\u306e\u8ddd\u96e2\u306f $4-2=2$ \u3067\u3059\u306e\u3067\uff0c\u30af\u30fc\u30ed\u30f3\u306e\u6cd5\u5247\u304b\u3089\uff0c\u529b\u306e\u5927\u304d\u3055\u306f\uff0c<\/p>\n\n\n\n<p>$$f=k\\bun{|-4q\\cdot1|}{2^2}=k\\bun{4q}{4}=kq$$<\/p>\n\n\n\n<p>\u3068\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u53ca\u307c\u3057\u5408\u3046\u306e\u306f\u5f15\u529b\u306a\u306e\u3067\uff0c\u5358\u4f4d\u96fb\u8377\u304c\u53d7\u3051\u308b\u529b\u306f $x$ \u8ef8\u6b63\u306e\u5411\u304d\u3068\u306a\u308b\u3053\u3068\u304b\u3089\uff0c\u7b26\u53f7\u3082\u542b\u3081\u308b\u3068<\/p>\n\n\n\n<p>$$E_2=kq$$<\/p>\n\n\n\n<p>\u3067\u3059\u306d\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>$E_1$ \u3068 $E_2$ \u3092\u91cd\u306d\u5408\u308f\u305b\u305f\u3082\u306e\u304c $x=2$ \u306e\u4f4d\u7f6e\u306b\u304a\u3051\u308b\u96fb\u5834 $E$ \u3067\u3059\u306e\u3067\uff0c<\/p>\n\n\n\n<p>$$E=E_1+E_2=k\\bun{q}{4}+kq=k\\Bun{5q}{4}$$<\/p>\n\n\n\n<p>\u3068\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002\u307e\u305f\uff0c$F=qE$ \u306e\u95a2\u4fc2\u5f0f\u304b\u3089\uff0c$q$ \u306e\u96fb\u8377\u304c\u53d7\u3051\u308b\u529b\u306f\uff0c<\/p>\n\n\n\n<p>$$f=k\\bun{5q}{4}\\cdot q=k\\Bun{5q^2}{4}$$<\/p>\n\n\n\n<p>\u3067\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">(3) \u306e\u89e3\u304d\u65b9<\/h3>\n\n\n\n<p>\u5834\u6240\u306b\u3088\u3063\u3066\u5834\u5408\u5206\u3051\u3092\u3057\u3066\u8003\u3048\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading is-style-st-heading-custom-count post-hashiro-countA\">$x&gt;0$ \u306e\u9818\u57df<\/h3>\n\n\n\n<p>\u5358\u4f4d\u96fb\u8377\u304c\u53d7\u3051\u308b\u529b\u3092\u8003\u3048\u307e\u3059\u3002\u96fb\u8377 $\\rmA$ \u304b\u3089\u306f\u65a5\u529b\uff0c\u96fb\u8377 $\\rmB$ \u304b\u3089\u306f\u5f15\u529b\u3092\u53d7\u3051\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u5411\u304d\u306f\u6b63\u53cd\u5bfe\u306a\u306e\u3067\uff0c\u8db3\u3057\u5408\u308f\u305b\u308b\u3068 $\\vec{0}$ \u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u306d\u3002<\/p>\n<\/div><\/div><\/div><\/div>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon2 clearfix\"><div class=\"st-kaiwa-area2\"><div class=\"st-kaiwa-hukidashi2\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u3067\u306f\u5927\u304d\u3055\u306f\u3069\u3046\u3067\u3057\u3087\u3046\u304b\uff1f<\/p>\n<\/div><\/div><\/div><div class=\"st-kaiwa-face2\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u7591\u554f\uff09.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u751f\u5f92\uff08\u7591\u554f\uff09.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name2\">\u751f\u5f92<\/div><\/div><\/div>\n\n\n\n<p>\u8003\u3048\u3066\u3044\u308b\u4f4d\u7f6e\u306f\u96fb\u8377 $\\rmA$ \u304b\u3089\u3088\u308a\u9060\u3044\u4f4d\u7f6e\u306b\u3042\u308a\uff0c\u3055\u3089\u306b\u96fb\u8377 $\\rmA$ \u306f\u96fb\u8377 $\\rmB$ \u3088\u308a\u5927\u304d\u3055\u304c\u5c0f\u3055\u3044\u72b6\u6cc1\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u5834\u5408\uff0c\u5fc5\u305a\u96fb\u8377 $\\rmA$ \u304c\u5358\u4f4d\u96fb\u8377\u306b\u53ca\u307c\u3059\u529b\u306e\u5927\u304d\u3055 $f_1$ \u3088\u308a\u3082\uff0c\u96fb\u8377 $\\rmB$ \u304c\u5358\u4f4d\u96fb\u8377\u306b\u53ca\u307c\u3059\u529b\u306e\u5927\u304d\u3055 $f_2$ \u306e\u65b9\u304c\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"189\" height=\"94\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406818.svg\" alt=\"\u7269\u7406818\" class=\"wp-image-6500\"\/><noscript><img decoding=\"async\" width=\"189\" height=\"94\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406818.svg\" alt=\"\u7269\u7406818\" class=\"wp-image-6500\"\/><\/noscript><\/figure>\n\n\n\n<p>\u3088\u3063\u3066\uff0c\u8db3\u3057\u5408\u308f\u305b\u305f\u3068\u304d\u306b $\\vec{f}=0$ \u3068\u306a\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading is-style-st-heading-custom-count post-hashiro-countA\">$0&lt;x&lt;4$ \u306e\u9818\u57df<\/h3>\n\n\n\n<p>\u5358\u4f4d\u96fb\u8377\u3092\u304a\u3044\u3066\u307f\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u96fb\u8377 $\\rmA$ \u304b\u3089\u306f\u65a5\u529b\uff0c\u96fb\u8377 $\\rmB$ \u304b\u3089\u306f\u5f15\u529b\u3092\u53d7\u3051\u307e\u3059\u304c\uff0c\u3069\u3061\u3089\u3082\u5411\u304d\u304c $x$ \u8ef8\u6b63\u306e\u5411\u304d\u306a\u306e\u3067\uff0c\u8db3\u3057\u5408\u308f\u305b\u305f\u3068\u304d\u306b $\\vec{0}$ \u3068\u306a\u308b\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"189\" height=\"105\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406819.svg\" alt=\"\u7269\u7406819\" class=\"wp-image-6501\"\/><noscript><img decoding=\"async\" width=\"189\" height=\"105\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406819.svg\" alt=\"\u7269\u7406819\" class=\"wp-image-6501\"\/><\/noscript><\/figure>\n\n\n\n<h3 class=\"wp-block-heading is-style-st-heading-custom-count post-hashiro-countA\">$x&lt;0$ \u306e\u9818\u57df<\/h3>\n\n\n\n<p>\u5358\u4f4d\u96fb\u8377\u304c\u96fb\u8377 $\\rmA$ \u304b\u3089\u53d7\u3051\u308b\u65a5\u529b\u306f $x$ \u8ef8\u8ca0\u306e\u5411\u304d\uff0c\u96fb\u8377 $\\rmB$ \u304b\u3089\u53d7\u3051\u308b\u5f15\u529b\u306f $x$ \u8ef8\u6b63\u306e\u5411\u304d\u306b\u306a\u308b\u306e\u3067\uff0c\u8db3\u3057\u5408\u308f\u305b\u308b\u3068 $\\vec{0}$ \u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u306d\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u5358\u4f4d\u96fb\u8377\u3092\u304a\u304f\u4f4d\u7f6e\u3092 $x (&lt;0)$ \u3068\u3059\u308b\u3068\uff0c\u30af\u30fc\u30ed\u30f3\u306e\u6cd5\u5247\u304b\u3089\uff0c<\/p>\n\n\n\n<p>$$f_1=k\\bun{q}{x^2},\\ f_2=k\\bun{4q}{(4-x)^2}$$<\/p>\n\n\n\n<p>\u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>$f_1=f_2$ \u3067\u3042\u308c\u3070\uff0c\u8db3\u3057\u5408\u308f\u305b\u305f\u3068\u304d\u306b $\\vec{0}$ \u3068\u306a\u308b\u306e\u3067\uff0c<\/p>\n\n\n\n<p>$$f_1=f_2 \\LLeftrightarrow x=-4$$<\/p>\n\n\n\n<p>\u306e\u4f4d\u7f6e\u306b\u304a\u3051\u308b\u96fb\u5834\u304c $\\vec{0}$ \u3067\u3042\u308b\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n<figure class=\"wp-block-image size-large physicsimg\"><img decoding=\"async\" width=\"189\" height=\"104\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406820.svg\" alt=\"\u7269\u7406820\" class=\"wp-image-6502\"\/><noscript><img decoding=\"async\" width=\"189\" height=\"104\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/\u7269\u7406820.svg\" alt=\"\u7269\u7406820\" class=\"wp-image-6502\"\/><\/noscript><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">\u96fb\u5834\u304c $\\vec{0}$ \u306b\u306a\u308b\u70b9\u306e\u8003\u3048\u65b9<\/h3>\n\n\n\n<p>(3) \u306e\u5834\u5408\u306b\u3064\u3044\u3066\uff0c\u96fb\u5834\u304c $\\vec{0}$ \u306b\u306a\u308b\u70b9\u3092\uff0c\u3088\u308a\u7c21\u5358\u306b\u8003\u3048\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u30af\u30fc\u30ed\u30f3\u306e\u6cd5\u5247\u306e\u5f62 $f = k \\bun{\\stext{\uff08\u96fb\u8377\u306e\u5927\u304d\u3055\uff09}}{\\stext{\uff08\u96fb\u8377\u304b\u3089\u306e\u8ddd\u96e2\uff09}^2}$ \u304b\u3089\u8003\u3048\u308b\u3068\u3088\u308a\u308f\u304b\u308a\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p>$f_1 = f_2$ \u3068\u306a\u308b\u305f\u3081\u306b\u306f\uff0c2\u3064\u306e\u96fb\u8377 $\\rmA$\uff0c$\\rmB$ \u306b\u3064\u3044\u3066\u3053\u306e\u5024\u304c\u7b49\u3057\u304f\u306a\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div style=\"height:10px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p>\u5206\u5b50\u306e\u6bd4\u306f $q : 4q = 1 : 4$ \u306a\u306e\u3067\uff0c\u5206\u6bcd\u3082 $1 : 4$ \u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u306d\u3002\u3088\u3063\u3066\uff0c<\/p>\n\n\n\n<p>$$\\stext{\uff08\u96fb\u8377$\\rmA$\u304b\u3089\u306e\u8ddd\u96e2\uff09}^2 : \\stext{\uff08\u96fb\u8377$\\rmB$\u304b\u3089\u306e\u8ddd\u96e2\uff09}^2 = 1 : 4$$<\/p>\n\n\n\n<p>\u304c\u6210\u7acb\u3059\u308c\u3070\u3088\u3044\u306e\u3067\uff0c\u3053\u308c\u3092\u89e3\u304f\u3068\uff0c<\/p>\n\n\n\n<p>$$\\stext{\uff08\u96fb\u8377$\\rmA$\u304b\u3089\u306e\u8ddd\u96e2\uff09} : \\stext{\uff08\u96fb\u8377$\\rmB$\u304b\u3089\u306e\u8ddd\u96e2\uff09} = 1 : 2$$<\/p>\n\n\n\n<p>\u3068\u3044\u3046\u6761\u4ef6\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3053\u306e\u95a2\u4fc2\u3092\u3082\u3068\u306b\u300c$x&lt;0$\u300d\u306e\u9818\u57df\u306b\u3064\u3044\u3066\u8003\u3048\u76f4\u3059\u3068\uff0c$x=-4$ \u306e\u4f4d\u7f6e\u304c\u6761\u4ef6\u3092\u6e80\u305f\u3059\u70b9\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<div class=\"st-kaiwa-box kaiwaicon1 clearfix\"><div class=\"st-kaiwa-face\"><img decoding=\"async\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" data-src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><noscript><img decoding=\"async\" src=\"https:\/\/torisetudy.com\/wp-content\/uploads\/2022\/07\/\u5b8c\u6210\u30a2\u30a4\u30b3\u30f3.png\" width=\"60px\"><\/noscript><div class=\"st-kaiwa-face-name\">\u7fbd\u767d<\/div><\/div><div class=\"st-kaiwa-area\"><div class=\"st-kaiwa-hukidashi\"><div class=\"wp-block-st-blocks-st-kaiwa\">\n<p>\u6761\u4ef6\u304c\u308f\u304b\u308c\u3070\uff0c\u3053\u306e\u8a08\u7b97\u306f\u6697\u7b97\u3067\u3082\u7d20\u65e9\u304f\u884c\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\uff01<\/p>\n<\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u76ee\u6b211 \u96fb\u5834\u306e\u91cd\u306d\u5408\u308f\u305b2 \u4f8b\u984c \u96fb\u5834\u306e\u91cd\u306d\u5408\u308f\u305b \u8907\u6570\u306e\u96fb\u5834\u306e\u6271\u3044 \u8907\u6570\u306e\u96fb\u8377\u306b\u3088\u308b\u96fb\u5834\uff08$\\vec{E_1},\\,\\vec{E_2},\\,\\vec{E_3},\\,\\ldots$\uff09\u304c\u5b58\u5728\u3059\u308b\u3068\u304d\uff0c\u3053 &#8230; <\/p>\n","protected":false},"author":1,"featured_media":6738,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39,23],"tags":[],"class_list":["post-6765","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-39","category-electromagnetics"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/6765"}],"collection":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=6765"}],"version-history":[{"count":28,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/6765\/revisions"}],"predecessor-version":[{"id":6793,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/posts\/6765\/revisions\/6793"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=\/wp\/v2\/media\/6738"}],"wp:attachment":[{"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=6765"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=6765"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/torisetudy.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=6765"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}