{"id":2626,"date":"2022-03-26T15:05:13","date_gmt":"2022-03-26T06:05:13","guid":{"rendered":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/?page_id=2626"},"modified":"2022-11-07T14:51:34","modified_gmt":"2022-11-07T05:51:34","slug":"%e3%83%9e%e3%82%af%e3%82%b9%e3%82%a6%e3%82%a7%e3%83%ab%e6%96%b9%e7%a8%8b%e5%bc%8f%e3%81%ab%e7%8f%be%e3%82%8c%e3%82%8b%e8%ab%b8%e9%87%8f%e3%81%ae%e8%a7%a3%e8%aa%ac","status":"publish","type":"page","link":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/%e9%9b%bb%e7%a3%81%e6%b0%97%e5%ad%a6-i\/%e3%83%9e%e3%82%af%e3%82%b9%e3%82%a6%e3%82%a7%e3%83%ab%e6%96%b9%e7%a8%8b%e5%bc%8f%e3%81%ab%e7%8f%be%e3%82%8c%e3%82%8b%e8%ab%b8%e9%87%8f%e3%81%ae%e8%a7%a3%e8%aa%ac\/","title":{"rendered":"\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u65b9\u7a0b\u5f0f\u306b\u73fe\u308c\u308b\u8af8\u91cf\u306e\u89e3\u8aac"},"content":{"rendered":"<p><!--more--><\/p>\n<h3 id=\"yui_3_17_2_1_1648273474451_1380\">\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u65b9\u7a0b\u5f0f\uff1a\u96fb\u78c1\u6c17\u5b66\u306e\u57fa\u790e\u65b9\u7a0b\u5f0f<\/h3>\n<p>\u96fb\u78c1\u6c17\u5b66\u306e\u57fa\u790e\u65b9\u7a0b\u5f0f\u3067\u3042\u308b\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u65b9\u7a0b\u5f0f\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306a4\u7d44\u306e\u65b9\u7a0b\u5f0f\u3067\u3042\u308b\u3002<\/p>\n<p id=\"yui_3_17_2_1_1648273474451_1577\">\\begin{eqnarray}<br id=\"yui_3_17_2_1_1648273474451_1578\" \/>\\nabla\\cdot \\boldsymbol{D} &amp;=&amp; \\rho\u00a0 \\tag{1}\\\\<br id=\"yui_3_17_2_1_1648273474451_1579\" \/>\\nabla\\cdot\\boldsymbol{B} &amp;=&amp; 0\u00a0 \\tag{2}\\\\<br id=\"yui_3_17_2_1_1648273474451_1580\" \/>\\nabla\\times\\boldsymbol{E} + \\frac{\\partial \\boldsymbol{B}}{\\partial t} &amp;=&amp; \\boldsymbol{0}\u00a0 \\tag{3}\\\\<br id=\"yui_3_17_2_1_1648273474451_1581\" \/>\\nabla\\times\\boldsymbol{H} &#8211; \\frac{\\partial \\boldsymbol{D}}{\\partial t} &amp;=&amp; \\boldsymbol{J} \\tag{4}<br id=\"yui_3_17_2_1_1648273474451_1582\" \/>\\end{eqnarray}<\/p>\n<p>\u66f8\u304d\u65b9\u3068\u3057\u3066\u306f\u7b49\u53f7\u306e\u5de6\u8fba\u306b\u306f\u5834\u306e\u91cf\uff0c\u53f3\u8fba\u306b\u306f\u7269\u8cea\u306b\u4ed8\u968f\u3059\u308b\u96fb\u8377\u3084\u96fb\u6d41\u3092\u8868\u3059\u91cf\u3092\u304a\u304f\u3053\u3068\u306b\u3059\u308b\u3002\u3053\u3046\u3057\u3066\u304a\u3051\u3070\uff0c\u96fb\u8377\u306e\u4fdd\u5b58\u5247\u3092\u3042\u3089\u308f\u3059\u9023\u7d9a\u306e\u5f0f<\/p>\n<p>$$\\frac{\\partial \\rho}{\\partial t} + \\nabla\\cdot \\boldsymbol{J} = 0$$<\/p>\n<p>\u3082\u5bb9\u6613\u306b\u5c0e\u3051\u308b\u3002<\/p>\n<h3 id=\"yui_3_17_2_1_1648273474451_1583\">\u96fb\u78c1\u6c17\u5b66\u8af8\u91cf\u306e\u8aac\u660e<\/h3>\n<div id=\"yui_3_17_2_1_1648273474451_1584\">\n<h4 id=\"yui_3_17_2_1_1648273474451_1585\">\u96fb\u5834\u306b\u95a2\u3059\u308b\u91cf\u306e\u5b9a\u7fa9<\/h4>\n<\/div>\n<ul id=\"yui_3_17_2_1_1648273474451_1586\">\n<li id=\"yui_3_17_2_1_1648273474451_1587\"><span style=\"font-family: helvetica, arial, sans-serif;\"><b id=\"yui_3_17_2_1_1648273474451_1588\">\u96fb\u6c17\u529b\u7dda<\/b><\/span>\uff1a \u96fb\u5834\u306e\u69d8\u5b50\u3092\u8996\u899a\u7684\u306b\u8868\u73fe\u3059\u308b\u305f\u3081\u306b\u5c0e\u5165\u3055\u308c\u305f\u4eee\u60f3\u7684\u306a\u7dda\u3002\uff08\u5b9f\u969b\u306b\u76ee\u306b\u898b\u3048\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3002\uff09<br id=\"yui_3_17_2_1_1648273474451_1589\" \/>\u4ee5\u4e0b\u306e\u5b9a\u7fa9\u304b\u3089\uff0c\u96fb\u6c17\u529b\u7dda\u306f\u6b63\u306e\u96fb\u8377\u304b\u3089\u6e67\u304d\u51fa\u3066\uff0c\u8ca0\u306e\u96fb\u8377\u306b\u5438\u3044\u8fbc\u307e\u308c\u308b\u3002\u6b63\u96fb\u8377\u304b\u3089\u8ca0\u96fb\u8377\u3078\u306e\u5411\u304d\u3092\u6301\u3063\u305f\u7dda\u3067\u3042\u308b\u3068\u30a4\u30e1\u30fc\u30b8\u3059\u308b\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3860\" src=\"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-content\/uploads\/sites\/76\/vec-pmq.svg\" alt=\"\" width=\"480\" height=\"480\" \/><br id=\"yui_3_17_2_1_1648273474451_1590\" \/><br id=\"yui_3_17_2_1_1648273474451_1591\" \/><\/li>\n<li id=\"yui_3_17_2_1_1648273474451_1592\"><span style=\"font-family: helvetica, arial, sans-serif;\"><b id=\"yui_3_17_2_1_1648273474451_1593\">\u96fb\u8377<\/b><\/span>\uff1a \\(q\\) \u3084 \\(Q\\) \u306a\u3069\u3068\u66f8\u304f\u3002\u5358\u4f4d\u306f<b id=\"yui_3_17_2_1_1648273474451_1594\"> <\/b>\\(\\mbox{C}\\)\uff08\u30af\u30fc\u30ed\u30f3\uff09<br id=\"yui_3_17_2_1_1648273474451_1595\" \/>\u96fb\u6c17\u529b\u7dda\u306e\u6e67\u304d\u51fa\u3057\u53e3\uff08\u30de\u30a4\u30ca\u30b9\u306e\u5834\u5408\u306f\u5438\u3044\u8fbc\u307f\u53e3\uff09\u3002<br id=\"yui_3_17_2_1_1648273474451_1596\" \/><b id=\"yui_3_17_2_1_1648273474451_1597\"> <\/b>\\(\\mbox{C}\\)\uff08\u30af\u30fc\u30ed\u30f3\uff09\u306f\u6e67\u304d\u51fa\u3059\uff08\u30de\u30a4\u30ca\u30b9\u306e\u5834\u5408\u306f\u5438\u3044\u8fbc\u307e\u308c\u308b\uff09\u96fb\u6c17\u529b\u7dda\u306e\u672c\u6570\u3092\u8868\u3059\u5358\u4f4d\u3002\u3082\u3061\u308d\u3093 \\(1 \\mbox{C}\\) \u306e\u96fb\u8377\u304b\u3089\u96fb\u6c17\u529b\u7dda\u304c \\(1\\) \u672c \u3060\u3051\u6e67\u304d\u51fa\u308b\u3068\u3044\u3046\u3088\u308a\u306f\\(1\\)\u5358\u4f4d\u306e\u96fb\u6c17\u529b\u7dda\u304c\u6e67\u304d\u51fa\u308b\uff0c\\(2 \\mbox{C}\\)\u306e\u96fb\u8377\u304b\u3089\u306f\\(1 \\mbox{C}\\) \u306e \\( 2 \\) \u500d\u306e\u672c\u6570\u306e\u96fb\u6c17\u529b\u7dda\u304c\u6e67\u304d\u51fa\u308b\uff0c\u3068\u3044\u3046\u76f8\u5bfe\u7684\u306a\u672c\u6570\u306e\u591a\u3044\u5c11\u306a\u3044\u3092\u8868\u3059\u3068\u8003\u3048\u308b\u3002<br id=\"yui_3_17_2_1_1648273474451_1598\" \/><br id=\"yui_3_17_2_1_1648273474451_1599\" \/><\/li>\n<li id=\"yui_3_17_2_1_1648273474451_1600\"><span style=\"font-family: helvetica, arial, sans-serif;\"><b id=\"yui_3_17_2_1_1648273474451_1601\">\u96fb\u8377\u5bc6\u5ea6<\/b><\/span>\uff1a \\( \\rho \\)\uff08\u30ae\u30ea\u30b7\u30a2\u6587\u5b57\u306e\u30ed\u30fc\uff09\u3068\u66f8\u304f\u3002\u5358\u4f4d\u306f<b id=\"yui_3_17_2_1_1648273474451_1602\"> <\/b>\\(\\mbox{C}\/\\mbox{m}^3 \\)<br id=\"yui_3_17_2_1_1648273474451_1603\" \/>\u5358\u4f4d\u4f53\u7a4d\u3042\u305f\u308a\u306e\u96fb\u8377\u3002<br id=\"yui_3_17_2_1_1648273474451_1604\" \/>\uff08\u3053\u3053\u3067\u306e\u300c\u5bc6\u5ea6\u300d\u3068\u306f\u4f53\u7a4d\u5bc6\u5ea6\u306e\u610f\u5473\u3002\uff09<br id=\"yui_3_17_2_1_1648273474451_1605\" \/><br id=\"yui_3_17_2_1_1648273474451_1606\" \/><\/li>\n<li id=\"yui_3_17_2_1_1648273474451_1607\"><span style=\"font-family: helvetica, arial, sans-serif;\"><b id=\"yui_3_17_2_1_1648273474451_1608\">\u96fb\u6d41<\/b><\/span>\uff1a \\(I \\) \u306a\u3069\u3068\u66f8\u304f\u3002\u5358\u4f4d\u306f<b id=\"yui_3_17_2_1_1648273474451_1609\"> <\/b>\\(\\mbox{C}\/\\mbox{s} = \\mbox{A} \\)\uff08\u30a2\u30f3\u30da\u30a2\uff09<br id=\"yui_3_17_2_1_1648273474451_1610\" \/>\u3042\u308b\u70b9\u307e\u305f\u306f\u9762\u3092\u5358\u4f4d\u6642\u9593\u306b\u901a\u904e\u3059\u308b\u96fb\u8377\u306e\u91cf\u306e\u3053\u3068\u3002<br id=\"yui_3_17_2_1_1648273474451_1611\" \/><br id=\"yui_3_17_2_1_1648273474451_1612\" \/><\/li>\n<li id=\"yui_3_17_2_1_1648273474451_1613\"><span style=\"font-family: helvetica, arial, sans-serif;\"><b id=\"yui_3_17_2_1_1648273474451_1614\">\u96fb\u6d41\u5bc6\u5ea6<\/b><\/span>\uff1a \\( \\boldsymbol{J} \\)\uff08\u30d9\u30af\u30c8\u30eb\uff09\u3068\u66f8\u304f\u3002\u5358\u4f4d\u306f <b id=\"yui_3_17_2_1_1648273474451_1615\"> <\/b>\\(\\mbox{C}\/(\\mbox{s}\\cdot\\mbox{m}^2) = \\mbox{A}\/\\mbox{m}^2\\)<br id=\"yui_3_17_2_1_1648273474451_1616\" \/>\u30d9\u30af\u30c8\u30eb \\( \\boldsymbol{J} \\) \u306e\u5411\u304d\u304c\u96fb\u6d41\u306e\u6d41\u308c\u308b\u5411\u304d\u3092\u8868\u3057\uff0c\u305d\u306e\u5927\u304d\u3055 \\( J = |\\boldsymbol{J}| \\) \u304c \\( \\boldsymbol{J} \\) \u306b\u5782\u76f4\u306a\u5358\u4f4d\u9762\u7a4d\u3092\u901a\u904e\u3059\u308b\u96fb\u6d41\uff08\u5358\u4f4d\u6642\u9593\u3042\u305f\u308a\u306e\u96fb\u8377\u306e\u6d41\u308c\uff09\u3092\u8868\u3059\u3002<br id=\"yui_3_17_2_1_1648273474451_1617\" \/>\uff08\u3053\u3053\u3067\u306e\u300c\u5bc6\u5ea6\u300d\u3068\u306f\u9762\u5bc6\u5ea6\u306e\u610f\u5473\u3002\uff09\u5c0f\u6587\u5b57 \\(\\boldsymbol{j}\\) \u306f $y$ \u8ef8\u65b9\u5411\u306e\u57fa\u672c\u30d9\u30af\u30c8\u30eb\u3068\u6df7\u540c\u3059\u308b\u306e\u3067\u5927\u6587\u5b57 \\( \\boldsymbol{J} \\) \u3067\u8868\u3059\u3053\u3068\u306b\u3059\u308b\u3002<br id=\"yui_3_17_2_1_1648273474451_1618\" \/><br id=\"yui_3_17_2_1_1648273474451_1619\" \/><\/li>\n<li id=\"yui_3_17_2_1_1648273474451_1620\"><span style=\"font-family: helvetica, arial, sans-serif;\"><b id=\"yui_3_17_2_1_1648273474451_1621\">\u96fb\u675f\u5bc6\u5ea6<\/b><\/span>\uff1a \\( \\boldsymbol{D} \\) \uff08\u30d9\u30af\u30c8\u30eb\uff09\u3068\u66f8\u304f\u3002\u5358\u4f4d\u306f \\( \\mbox{C}\/\\mbox{m}^2 \\)<br id=\"yui_3_17_2_1_1648273474451_1622\" \/>\u96fb\u675f\u3068\u306f\u96fb\u6c17\u529b\u7dda\u306e\u675f\uff08\u305f\u3070\uff09\u3002\u30d9\u30af\u30c8\u30eb \\( \\boldsymbol{D} \\) \u306e\u5411\u304d\u304c\u96fb\u6c17\u529b\u7dda\u306e\u5411\u304d\u3092\u8868\u3057\uff0c\u305d\u306e\u5927\u304d\u3055 \\( D = |\\boldsymbol{D}| \\) \u304c \\( \\boldsymbol{D} \\) \u306b\u5782\u76f4\u306a\u5358\u4f4d\u9762\u7a4d\u3092\u8cab\u304f\u96fb\u6c17\u529b\u7dda\u306e\u672c\u6570\u3092\u8868\u3059\u3002<br id=\"yui_3_17_2_1_1648273474451_1623\" \/>\uff08\u3053\u3053\u3067\u306e\u300c\u5bc6\u5ea6\u300d\u3068\u306f\u9762\u5bc6\u5ea6\u306e\u610f\u5473\u3002\uff09<\/li>\n<\/ul>\n<div id=\"yui_3_17_2_1_1648273474451_1624\">\n<h4 id=\"yui_3_17_2_1_1648273474451_1625\">\u78c1\u5834\u306b\u95a2\u3059\u308b\u91cf\u306e\u5b9a\u7fa9<\/h4>\n<div id=\"yui_3_17_2_1_1648273474451_1626\">\u78c1\u5834\u306b\u95a2\u3059\u308b\u91cf\u306b\u3064\u3044\u3066\u3082\u540c\u69d8\u306b\u5b9a\u7fa9\u3057\u3066\u3044\u304f&#8230;<\/div>\n<div id=\"yui_3_17_2_1_1648273474451_1627\"><\/div>\n<\/div>\n<div id=\"yui_3_17_2_1_1648273474451_1629\">\n<ul id=\"yui_3_17_2_1_1648273474451_1630\">\n<li id=\"yui_3_17_2_1_1648273474451_1631\"><span style=\"font-family: helvetica, arial, sans-serif;\"><b id=\"yui_3_17_2_1_1648273474451_1632\">\u78c1\u529b\u7dda<\/b><\/span>\uff1a \u78c1\u5834\u306e\u69d8\u5b50\u3092\u8996\u899a\u7684\u306b\u8868\u73fe\u3059\u308b\u305f\u3081\u306b\u5c0e\u5165\u3055\u308c\u305f\u4eee\u60f3\u7684\u306a\u7dda\u3002\uff08\u5b9f\u969b\u306b\u76ee\u306b\u898b\u3048\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3002\uff09<br id=\"yui_3_17_2_1_1648273474451_1633\" \/>\u4ee5\u4e0b\u306e\u5b9a\u7fa9\u304b\u3089\uff0c\u78c1\u6c17\u529b\u7dda\u306fN\uff08\u6b63\uff09\u6975\u304b\u3089\u6e67\u304d\u51fa\u3066\uff0cS\uff08\u8ca0\uff09\u6975\u306b\u5438\u3044\u8fbc\u307e\u308c\u308b\u3002N\uff08\u6b63\uff09\u6975\u304b\u3089S\uff08\u8ca0\uff09\u6975\u3078\u306e\u5411\u304d\u3092\u6301\u3063\u305f\u7dda\u3067\u3042\u308b\u3068\u30a4\u30e1\u30fc\u30b8\u3059\u308b\u3002<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-3863\" src=\"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-content\/uploads\/sites\/76\/vec-mag-dipole.svg\" alt=\"\" width=\"480\" height=\"480\" \/><br id=\"yui_3_17_2_1_1648273474451_1634\" \/><br id=\"yui_3_17_2_1_1648273474451_1635\" \/><\/li>\n<li id=\"yui_3_17_2_1_1648273474451_1636\"><span style=\"font-family: helvetica, arial, sans-serif;\"><b id=\"yui_3_17_2_1_1648273474451_1637\">\u78c1\u8377<\/b><\/span>\uff1a \u5358\u4f4d\u306f\\(\\mbox{Wb}\\)\uff08\u30a6\u30a7\u30fc\u30d0\uff09<br id=\"yui_3_17_2_1_1648273474451_1639\" \/>\u4eba\u540d\u306f\u300c\u30a6\u30a7\u30fc\u30d0\u30fc\u300d\u3068\u4f38\u3070\u3059\u304c\uff0c\u5358\u4f4d\u306f\u300c\u30a6\u30a7\u30fc\u30d0\u300d\u3068\u4f38\u3070\u3055\u306a\u3044\uff0c\u3089\u3057\u3044\u3002<br id=\"yui_3_17_2_1_1648273474451_1640\" \/>\u78c1\u529b\u7dda\u306e\u6e67\u304d\u51fa\u3057\u53e3\uff08\u307e\u305f\u306f\u5438\u3044\u8fbc\u307f\u53e3\uff09\u3002<br id=\"yui_3_17_2_1_1648273474451_1642\" \/>\\(\\mbox{Wb}\\)\uff08\u30a6\u30a7\u30fc\u30d0\uff09\u306f\u6e67\u304d\u51fa\u3059\uff08\u307e\u305f\u306f\u5438\u3044\u8fbc\u307e\u308c\u308b\uff09\u78c1\u529b\u7dda\u306e\u672c\u6570\u3092\u8868\u3059\u5358\u4f4d\u3002<br id=\"yui_3_17_2_1_1648273474451_1643\" \/>\u3082\u3061\u308d\u3093 \\(1 \\mbox{Wb}\\) \u306e\u78c1\u8377\u304b\u3089\u78c1\u529b\u7dda\u304c \\(1\\) \u672c \u3060\u3051\u6e67\u304d\u51fa\u308b\u3068\u3044\u3046\u3088\u308a\u306f\\(1\\)\u5358\u4f4d\u306e\u78c1\u529b\u7dda\u304c\u6e67\u304d\u51fa\u308b\uff0c\\(2 \\mbox{Wb}\\)\u306e\u78c1\u8377\u304b\u3089\u306f\\(1 \\mbox{Wb}\\) \u306e \\( 2 \\) \u500d\u306e\u672c\u6570\u306e\u78c1\u529b\u7dda\u304c\u6e67\u304d\u51fa\u308b\uff0c\u3068\u3044\u3046\u76f8\u5bfe\u7684\u306a\u672c\u6570\u306e\u591a\u3044\u5c11\u306a\u3044\u3092\u8868\u3059\u3068\u8003\u3048\u308b\u3002<br id=\"yui_3_17_2_1_1648273474451_1644\" \/>\u3069\u3046\u3057\u3066\u3082\u66f8\u304d\u305f\u3044\u3068\u304d\u306f \\( q_{\\rm m} \\) \u306a\u3069\u3068\u66f8\u304f\u5834\u5408\u3082\u3042\u308b\u304c\uff0c\u4ee5\u4e0b\u3092\u8aad\u3081\u3070\u308f\u304b\u308b\u3088\u3046\u306b\u307b\u3068\u3093\u3069<span style=\"font-family: helvetica, arial, sans-serif;\"><strong>\u76f4\uff08\u30b8\u30ab\uff09\u306b\u78c1\u8377\uff08\u30b8\u30ab\uff09\u3092\u8868\u8a18\u3059\u308b\u3053\u3068\u306f\u306a\u3044<\/strong><\/span>\u3002<br id=\"yui_3_17_2_1_1648273474451_1645\" \/><br id=\"yui_3_17_2_1_1648273474451_1646\" \/><br id=\"yui_3_17_2_1_1648273474451_1647\" \/><\/li>\n<li id=\"yui_3_17_2_1_1648273474451_1648\"><span style=\"font-family: helvetica, arial, sans-serif;\"><b id=\"yui_3_17_2_1_1648273474451_1649\">\u78c1\u675f\u5bc6\u5ea6<\/b><\/span>\uff1a \\( \\boldsymbol{B} \\) \uff08\u30d9\u30af\u30c8\u30eb\uff09\u3068\u66f8\u304f\u3002\u5358\u4f4d\u306f \\( \\mbox{Wb}\/\\mbox{m}^2 \\equiv \\mbox{T}\\)\uff08\u30c6\u30b9\u30e9\uff09<br id=\"yui_3_17_2_1_1648273474451_1650\" \/>\u78c1\u675f\u3068\u306f\u78c1\u529b\u7dda\u306e\u675f\uff08\u305f\u3070\uff09\u3002\u30d9\u30af\u30c8\u30eb \\( \\boldsymbol{B} \\) \u306e\u5411\u304d\u304c\u78c1\u529b\u7dda\u306e\u5411\u304d\u3092\u8868\u3057\uff0c\u305d\u306e\u5927\u304d\u3055 \\( B = |\\boldsymbol{B}| \\) \u304c \\( \\boldsymbol{B} \\) \u306b\u5782\u76f4\u306a\u5358\u4f4d\u9762\u7a4d\u3092\u8cab\u304f\u78c1\u529b\u7dda\u306e\u672c\u6570\u3092\u8868\u3059\u3002<br id=\"yui_3_17_2_1_1648273474451_1651\" \/>\uff08\u3053\u3053\u3067\u306e\u300c\u5bc6\u5ea6\u300d\u3068\u306f\u9762\u5bc6\u5ea6\u306e\u610f\u5473\u3002\uff09<br id=\"yui_3_17_2_1_1648273474451_1652\" \/><br id=\"yui_3_17_2_1_1648273474451_1653\" \/>\n<ul id=\"yui_3_17_2_1_1648273474451_1654\">\n<li id=\"yui_3_17_2_1_1648273474451_1655\">\u53c2\u8003\uff1a\u78c1\u6c17\u6cbb\u7642\u5668\u3068\u3057\u3066\u6709\u540d\uff08\uff1f\uff09\u306a\u30d4\u30c3\u30d7\u30a8\u30ec\u30ad\u30d0\u30f3\u306e\u5546\u54c1\u8aac\u660e\u3067\u3082\uff0c\u300c<a id=\"yui_3_17_2_1_1648273474451_1656\" href=\"https:\/\/www.pipjapan.co.jp\/products\/magnetism\/672641\/\" target=\"_blank\" rel=\"noopener\">\u30a8\u30ec\u30ad\u30d0\u30f3\u53f2\u4e0a\u6700\u5927\u78c1\u529b\u306e200\u30df\u30ea\u30c6\u30b9\u30e9<\/a>\u300d\u306e\u3088\u3046\u306b\u78c1\u675f\u5bc6\u5ea6\u306e\u5358\u4f4d \\( \\mbox{T} \\) \uff08\u30c6\u30b9\u30e9\uff09\u304c\u4f7f\u308f\u308c\u3066\u3044\u308b\u3002\u307e\u305f\u5730\u78c1\u6c17\u306e\u5f37\u3055\u306b\u3064\u3044\u3066\u3082\u300c<a href=\"https:\/\/ja.wikipedia.org\/wiki\/%E5%9C%B0%E7%A3%81%E6%B0%97#%E5%BC%B7%E3%81%95\" target=\"_blank\" rel=\"noopener\">\u5730\u78c1\u6c17\u306e\u5f37\u3055\u306f\u5730\u7403\u4e0a\u306e\u5834\u6240\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u3001\u307b\u307c 24000 nT &#8211; 66000 nT\uff08\u30ca\u30ce\u30c6\u30b9\u30e9\uff09\u306e\u7bc4\u56f2\u3067\u3042\u308b\u3002<\/a>\u300d\u306e\u8a18\u8f09\u304c\u307f\u3089\u308c\u308b\u3002<\/li>\n<\/ul>\n<\/li>\n<li><span style=\"font-family: helvetica, arial, sans-serif;\"><b>\u78c1\u8377\u5bc6\u5ea6<\/b><\/span>\u306f\u300c\u30bc\u30ed\u300d<br \/>\n\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u65b9\u7a0b\u5f0f\u306e (1) \u5f0f\u306e\u5bfe\u5fdc\u3067 (2) \u5f0f\u3092\u307f\u308b\u3068\uff0c\u96fb\u8377\u5bc6\u5ea6 \\( \\rho \\) \u306b\u3042\u305f\u308b\u300c\u78c1\u8377\u5bc6\u5ea6\u300d\u306e\u9805\u304c\u30bc\u30ed\u306b\u306a\u3063\u3066\u3044\u308b\u3053\u3068\u306b\u6c17\u3065\u304f\u3002\u3053\u306e\u3053\u3068\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u73fe\u3059\u308b\u3002<br \/>\n<b><span style=\"font-family: helvetica, arial, sans-serif;\">&#8220;\u78c1\u8377&#8221; \u306f\u5358\u72ec\u3067\u306f\u5b58\u5728\u3057\u306a\u3044\u3002\u3042\u308b\u3044\u306f\uff0c\u78c1\u6c17\u5358\u6975\u5b50\u306f\u5b58\u5728\u3057\u306a\u3044\u3002\u78c1\u77f3\u306eN\uff08\u6b63\uff09\u6975\uff0cS\uff08\u8ca0\uff09\u6975\u306f\u5358\u72ec\u3067\u73fe\u308c\u308b\u3053\u3068\u306f\u306a\u304f\uff0c\u5fc5\u305a\u5bfe\u306b\u306a\u3063\u3066\u73fe\u308c\u308b\u3002<\/span><br \/>\n<\/b>\u68d2\u78c1\u77f3\u3092\u3069\u3093\u306a\u306b\u5c0f\u3055\u304f\u5206\u5272\u3057\u3066\u3044\u3063\u3066\u3082\uff0cN\u6975\u3060\u3051\u30fbS\u6975\u3060\u3051\u306b\u306a\u308b\u3053\u3068\u306f\u306a\u3044\u3002\u304b\u306a\u3089\u305aN\u6975S\u6975\u304c\u5bfe\u306b\u306a\u3063\u3066\u73fe\u308c\u308b\u3002<br \/>\n\u78c1\u8377\u304c\u5358\u72ec\u3067\u306f\u5b58\u5728\u3057\u306a\u3044\u3053\u3068\u304b\u3089\uff0c\u78c1\u8377\u5bc6\u5ea6\u306f\uff08\u6b63\u8ca0\u3042\u308b\u3044\u306f NS \u304c\u3061\u3087\u3046\u3069\u6253\u3061\u6d88\u3057\u3042\u3063\u3066\uff09\u30bc\u30ed\u3067\u3042\u308b\u3057\uff0c\u96fb\u6d41\u3084\u96fb\u6d41\u5bc6\u5ea6\u306b\u5bfe\u5fdc\u3059\u308b\u300c\u78c1\u6d41\u300d\u3084\u300c\u78c1\u6d41\u5bc6\u5ea6\u300d\u3082\u5b9a\u7fa9\u3055\u308c\u306a\u3044\u3002<\/li>\n<\/ul>\n<div>\n<h3>\u96fb\u78c1\u5834\u306e\u7c97\u5bc6\u30fb\u6fc3\u6de1\u3092\u8868\u3059\u30d9\u30af\u30c8\u30eb\u304b\u3089\u96fb\u78c1\u5834\u306e\u5f37\u5f31\u3092\u8868\u3059\u30d9\u30af\u30c8\u30eb\u3078<\/h3>\n<\/div>\n<div><span style=\"font-family: helvetica, arial, sans-serif;\"><strong>\u96fb\u675f\u5bc6\u5ea6<\/strong><\/span> \\( \\boldsymbol{D} \\) \u3084<span style=\"font-family: helvetica, arial, sans-serif;\"><strong>\u78c1\u675f\u5bc6\u5ea6<\/strong><\/span> \\( \\boldsymbol{B} \\) \u30d9\u30af\u30c8\u30eb\u306f\uff0c<span style=\"font-family: helvetica, arial, sans-serif;\"><strong>\u96fb\u78c1\u5834\u306e\u7c97\u5bc6\u30fb\u6fc3\u6de1\uff0c\u3044\u308f\u3070\u5e7e\u4f55\u5b66\u7684\u6027\u8cea\u3092\u8868\u3059\u30d9\u30af\u30c8\u30eb<\/strong><\/span>\u3067\u3042\u308b\u3002<\/div>\n<div>\u96fb\u6c17\u529b\u7dda\u30fb\u78c1\u529b\u7dda\u304c\u5bc6\u3067\u3042\u308b\u3068\u3053\u308d\uff0c\u6fc3\u3044\u3068\u3053\u308d\u306f\u5f53\u7136\u96fb\u78c1\u5834\u3082\u5f37\u3044\u3067\u3042\u308d\u3046\u3068\u3044\u3046\u3053\u3068\u304b\u3089\uff0c\\( \\boldsymbol{D} \\) \u3084 \\( \\boldsymbol{B} \\) \u306b\u6bd4\u4f8b\u3059\u308b\u3082\u306e\u3068\u3057\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3057\u3066<span style=\"font-family: helvetica, arial, sans-serif;\"><strong>\u5834\u306e\u5f37\u5f31\uff0c\u3044\u308f\u3070\u529b\u5b66\u7684\u6027\u8cea\u3092\u8868\u3059\u30d9\u30af\u30c8\u30eb<\/strong><\/span>\u3092\u3064\u304f\u308b\u3002<\/div>\n<div><\/div>\n<div>\n<ul>\n<li>\\( \\boldsymbol{E} \\)\uff1a <span style=\"font-family: helvetica, arial, sans-serif;\"><strong>\u96fb\u5834\u30d9\u30af\u30c8\u30eb<\/strong><\/span>\u3002\u5358\u4f4d\u306f \\( \\mbox{N}\/\\mbox{C} \\)\uff08\u30cb\u30e5\u30fc\u30c8\u30f3 \/ \u30af\u30fc\u30ed\u30f3\uff09<br \/>\n\u5358\u4f4d\u96fb\u8377\u306b\u306f\u305f\u3089\u304f\u529b\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\uff0c<span style=\"font-family: helvetica, arial, sans-serif;\"><strong>\u771f\u7a7a\u306e\u8a98\u96fb\u7387<\/strong><\/span> \\(\\varepsilon_0 \\) \u3092\u7528\u3044\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u3002<br \/>\n$$ \\boldsymbol{E} \\equiv \\frac{1}{\\varepsilon_0} \\boldsymbol{D}$$<\/li>\n<li>\\( \\boldsymbol{H} \\)\uff1a <span style=\"font-family: helvetica, arial, sans-serif;\"><strong>\u78c1\u5834\u30d9\u30af\u30c8\u30eb<\/strong><\/span>\u3002\u5358\u4f4d\u306f \\( \\mbox{N}\/\\mbox{Wb} \\)\uff08\u30cb\u30e5\u30fc\u30c8\u30f3 \/ \u30a6\u30a7\u30fc\u30d0\uff09<br \/>\n\u5358\u4f4d\u78c1\u8377\u306b\u306f\u305f\u3089\u304f\u529b\u3068\u3057\u3066\u5b9a\u7fa9\u3055\u308c\uff0c<span style=\"font-family: helvetica, arial, sans-serif;\"><strong>\u771f\u7a7a\u306e\u900f\u78c1\u7387<\/strong><\/span> \\(\\mu_0 \\) \u3092\u7528\u3044\u3066\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u66f8\u304f\u3002<br \/>\n$$ \\boldsymbol{H} \\equiv \\frac{1}{\\mu_0} \\boldsymbol{B}$$<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p>&nbsp;<\/p>\n<div>\n<h3>\u96fb\u78c1\u5834\u3092\u8868\u30594\u3064\u306e\u30d9\u30af\u30c8\u30eb\u306b\u3064\u3044\u3066<\/h3>\n<p>\u96fb\u78c1\u5834\u3092\u8868\u3059\u306e\u306b\uff0c\\( \\boldsymbol{D}, \\boldsymbol{B}, \\boldsymbol{E},\\boldsymbol{H} \\) \u306e4\u672c\u306e\u30d9\u30af\u30c8\u30eb\u304c\u5168\u90e8\u5fc5\u8981\u306a\u306e\u304b\uff1f\u3069\u3046\u305b \\( \\boldsymbol{E} \\propto \\boldsymbol{D}, \\boldsymbol{H} \\propto \\boldsymbol{B} \\) \u306a\u3089\uff0c\u3069\u308c\u304b2\u672c\u3067\u5341\u5206\u306a\u306e\u3067\u306f\uff1f<\/p>\n<h4>\u96fb\u78c1\u5834\u306e\u7c97\u5bc6\u30fb\u6fc3\u6de1\u3092\u8868\u3059\u30d9\u30af\u30c8\u30eb\u3068\u96fb\u78c1\u5834\u306e\u5f37\u5f31\u3092\u8868\u3059\u30d9\u30af\u30c8\u30eb<\/h4>\n<p>\u96fb\u675f\u5bc6\u5ea6 \\( \\boldsymbol{D} \\) \u3084\u78c1\u675f\u5bc6\u5ea6 \\( \\boldsymbol{B} \\) \u30d9\u30af\u30c8\u30eb\u306f\uff0c\u96fb\u78c1\u5834\u306e\u7c97\u5bc6\u30fb\u6fc3\u6de1\uff0c\u3044\u308f\u3070\u5e7e\u4f55\u5b66\u7684\u6027\u8cea\u3092\u8868\u3059\u30d9\u30af\u30c8\u30eb\u3067\u3042\u3063\u305f\u3002<br \/>\n\u96fb\u6c17\u529b\u7dda\u30fb\u78c1\u529b\u7dda\u304c\u5bc6\u3067\u3042\u308b\u3068\u3053\u308d\uff0c\u6fc3\u3044\u3068\u3053\u308d\u306f\u5f53\u7136\u96fb\u78c1\u5834\u3082\u5f37\u3044\u3067\u3042\u308d\u3046\u3068\u3044\u3046\u3053\u3068\u304b\u3089\uff0c\\( \\boldsymbol{D} \\) \u3084 \\( \\boldsymbol{B} \\) \u306b\u6bd4\u4f8b\u3059\u308b\u3082\u306e\u3068\u3057\u3066\u5834\u306e\u5f37\u5f31\uff0c\u3044\u308f\u3070\u529b\u5b66\u7684\u6027\u8cea\u3092\u8868\u3059\u30d9\u30af\u30c8\u30eb\u3092\u3064\u304f\u3063\u305f\u306e\u3067\u3042\u3063\u305f\u3002<\/p>\n<p>\u96fb\u5834\u3092\u8a18\u8ff0\u3059\u308b \\( \\boldsymbol{D}\\) \u3068 \\( \\boldsymbol{E}\\) \u306f\u6bd4\u4f8b\u3059\u308b \\( \\displaystyle \\boldsymbol{E} \\equiv \\frac{1}{\\varepsilon_0} \\boldsymbol{D}\\) \u3057\uff0c\u78c1\u5834\u3092\u8a18\u8ff0\u3059\u308b \\( \\boldsymbol{B}\\) \u3068 \\( \\boldsymbol{H}\\) \u3060\u3063\u3066\u6bd4\u4f8b\u3059\u308b \\(\\displaystyle \\boldsymbol{H} \\equiv \\frac{1}{\\mu_0} \\boldsymbol{B} \\)\u3002\u3069\u3046\u305b\u6bd4\u4f8b\u3059\u308b\u306e\u3067\u3042\u308c\u3070\uff0c\u96fb\u78c1\u5834\u3092\u8868\u3059\u306e\u306b\u308f\u3056\u308f\u30564\u3064\u306e\u30d9\u30af\u30c8\u30eb\u3092\u4f7f\u308f\u305a\u3068\u3082\uff0c2\u3064\u3067\u5341\u5206\u306a\u306e\u3067\u306f\u306a\u3044\u304b\uff1f \u3068\u3044\u3046\u8cea\u554f\u306b\u5bfe\u3057\u3066\u306f&#8230;<\/p>\n<p>\u6a21\u7bc4\u89e3\u7b54\u306b\u3064\u306a\u304c\u308b\u30d2\u30f3\u30c8\u3068\u3057\u3066\uff0c\u7c73\u3092\u4f53\u7a4d\uff081\u30ab\u30c3\u30d7\u3068\u304b1\u5347\u3068\u304b\uff09\u3067\u6e2c\u308b\u304b\uff0c\u8cea\u91cf\uff08100\u30b0\u30e9\u30e0\u3068\u304b 1 kg \u3068\u304b\uff09\u3067\u6e2c\u308b\u304b\uff0c\u3068\u3044\u3046\u4f8b\u3092\u51fa\u3057\u3066\uff0c\u3069\u3046\u305b\u8cea\u91cf\u306f\u4f53\u7a4d\u306b\u6bd4\u4f8b\u3059\u308b\u3093\u3060\u304b\u3089\uff0c\u4f53\u7a4d\u3060\u3051\u3092\u4f7f\u3048\u3070\u3044\u3044\u3093\u3058\u3083\u3041\u306a\u3044\uff1f\u3068\u601d\u3046\u304b\u3082\u3057\u308c\u306a\u3044\u304c\uff0c\u7c731\u5347\u3068\u5927\u8c461\u5347\u3092\u52a0\u3048\u3066\u3082\uff0c\u7c92\u306e\u5927\u304d\u3055\u304c\u9055\u3046\u304b\u3089\u4f53\u7a4d\u3068\u3057\u3066\u306f2\u5347\u3061\u3087\u3046\u3069\u306b\u306f\u306a\u3089\u306a\u3044\u3088\u306d\uff1f\u3060\u3051\u3069\uff0c\u7c73 1kg \u3068\u5927\u8c46 1kg \u3092\u8db3\u3057\u305f\u3089\u3061\u3087\u3046\u3069 2kg \u306b\u306a\u308b\u3088\u306d\uff1f\u3060\u304b\u3089\uff0c\u6bd4\u4f8b\u3059\u308b\u304b\u3089\u3068\u3044\u3063\u3066\u3069\u3063\u3061\u304b\u306e\u307f\u305b\u305a\uff0c\u4e21\u65b9\u5fc5\u8981\u306a\u3093\u3060\u3088\uff0c\u3068\u3044\u3046\u8a71\u3067\u5b66\u751f\u3055\u3093\u306b\u7d0d\u5f97\u3057\u3066\u3082\u3089\u304a\u3046\u3068\u601d\u3063\u305f\u304c\uff0c\u3055\u3063\u305d\u304f\u300c1\u5347\u300d\u3068\u306f\u4f55\u304b\u3068\u304b\u305d\u3046\u3044\u3046\u30ec\u30d9\u30eb\u3067\u6df7\u4e71\u3092\u62db\u304d\u305d\u3046\u3067\uff0c\u306a\u304b\u306a\u304b\u624b\u5f37\u3044\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u306a\u306e\u3067\u6a21\u7bc4\u89e3\u7b54\u3068\u3057\u3066\u306f4\u672c\u5168\u90e8\u5fc5\u8981\u306a\u306e\u3067\u3059\u3088\uff0c\u3068\u3044\u3046\u3053\u3068\u306b\u306a\u308b\u304c\uff0c\u5f8c\u8ff0\u3059\u308b\u7406\u7531\u306b\u3088\u308a\uff0c\u96fb\u5834\u306b\u3064\u3044\u3066\u306f \\( \\boldsymbol{D}\\) \u3068 \\( \\boldsymbol{E}\\) \u306e\u3046\u3061\u304b\u3089 \\( \\boldsymbol{E}\\) \u3092\u4f7f\u3044\uff0c\u78c1\u5834\u306b\u3064\u3044\u3066\u306f \\( \\boldsymbol{B}\\) \u3068 \\( \\boldsymbol{H}\\) \u306e\u3046\u3061\u304b\u3089 \\( \\boldsymbol{B}\\) \u3092\u4f7f\u3044\uff0c\u96fb\u78c1\u5834\u3092 \\( \\boldsymbol{E}\\) \u3068 \\( \\boldsymbol{B}\\) \u3092\u4f7f\u3063\u3066\u8868\u3059\u3053\u3068\u306b\u3059\u308b\u3002\u3044\u308f\u3086\u308b $\\boldsymbol{E}-\\boldsymbol{B}$ \u5bfe\u5fdc\u3067\u3059\u306a\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5b66\u751f\u6642\u4ee3\u306b\u8aad\u3093\u3067\u5f37\u304f\u5f71\u97ff\u3092\u53d7\u3051\u305f\u300c\u30d5\u30a1\u30a4\u30f3\u30de\u30f3\u7269\u7406\u5b66 III \u96fb\u78c1\u6c17\u5b66\u300d\u3067\u306f\u6700\u521d\u304b\u3089\u5fb9\u982d\u5fb9\u5c3e\u3053\u306e $\\boldsymbol{E}-\\boldsymbol{B}$ \u5bfe\u5fdc\u3060\u3063\u305f\u306e\u3067\uff0c\u79c1\u3082\u306f\u3058\u3081\u306f\u96fb\u675f\u5bc6\u5ea6 \\( \\boldsymbol{D}\\) \u3068\u304b\u78c1\u5834 \\( \\boldsymbol{H}\\) \u306b\u3042\u3093\u307e\u308a\u99b4\u67d3\u307f\u304c\u306a\u304b\u3063\u305f\u304c\uff0c\u3068\u3082\u304b\u304f4\u672c\u306e\u30d9\u30af\u30c8\u30eb\u3092\u4f7f\u3063\u3066\u66f8\u304f\u3068\u30de\u30af\u30b9\u30a6\u30a7\u30eb\u65b9\u7a0b\u5f0f\u306f\u4f59\u8a08\u306a\u6bd4\u4f8b\u5b9a\u6570\u306a\u304f\u7dba\u9e97\u306b\u66f8\u3051\u308b\u308f\u3051\u3060\u304b\u3089\uff0c\u6388\u696d\u306e\u9014\u4e2d\u307e\u3067\u306f4\u672c\u4f7f\u3063\u3066\u8aac\u660e\u3059\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u308b\u3002<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":33,"featured_media":0,"parent":2561,"menu_order":10,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"class_list":["post-2626","page","type-page","status-publish","hentry","nodate","item-wrap"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/pages\/2626","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/users\/33"}],"replies":[{"embeddable":true,"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/comments?post=2626"}],"version-history":[{"count":7,"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/pages\/2626\/revisions"}],"predecessor-version":[{"id":4176,"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/pages\/2626\/revisions\/4176"}],"up":[{"embeddable":true,"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/pages\/2561"}],"wp:attachment":[{"href":"https:\/\/home.hirosaki-u.ac.jp\/relativity\/wp-json\/wp\/v2\/media?parent=2626"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}