\u96fb\u78c1\u6c17\u5b66I\u3067\u3061\u3087\u3053\u3061\u3087\u3053\u540d\u524d\u304c\u51fa\u3066\u304d\u307e\u3057\u305f\u30d8\u30eb\u30e0\u30db\u30eb\u30c4\u306e\u5b9a\u7406\u306b\u3064\u3044\u3066\u306e\u3001\u3068\u308a\u3042\u3048\u305a\u306e\u8aac\u660e\u3067\u3059\u3002<\/p>\n\n\n\n
\u203b\\vec\u304c\u898b\u3065\u3089\u3044\u306e\u3067\\boldsymbol\u306b\u7f6e\u63db\u4e2d\u3002\uff12\u3064\u306e\u30d9\u30af\u30c8\u30eb\u8868\u8a18\u304c\u6df7\u5728\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u6c17\u306b\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n\n\n\n\n\n\n\n
\u30d8\u30eb\u30e0\u30db\u30eb\u30c4\u306e\u5b9a\u7406\u3068\u306f\u3001\u3042\u308b\u9818\u57dfV<\/span>\u306b\u304a\u3044\u3066\u4efb\u610f\u306e\u30d9\u30af\u30c8\u30eb\\boldsymbol{X}<\/span>\u306f\u3001<\/p>\n\n\n\n\\boldsymbol{X}(\\boldsymbol{r})=\\frac{1}{4\\pi}\\int_V \\left( \\nabla' \\cdot \\boldsymbol{X}(\\boldsymbol{r^{\\prime}}) +\\nabla' \\times \\boldsymbol{X}(\\boldsymbol{r'}) \\times \\right) \\nabla' \\frac{1}{\\left| \\boldsymbol{r}-\\boldsymbol{r'} \\right|}dV' -\\frac{1}{4\\pi}\\int_S \\left( \\boldsymbol{n} \\cdot \\boldsymbol{X}(\\boldsymbol{r'}) +\\boldsymbol{n} \\times \\boldsymbol{X}(\\boldsymbol{r'}) \\times \\right) \\nabla'\\frac{1}{\\left|\\boldsymbol{r}-\\boldsymbol{r'}\\right|}dS' <\/span>\n\n\n\n \u3068\u8868\u3055\u308c\u308b\u3001\u3068\u3044\u3046\u3082\u306e\u3067\u3059<\/span>1<\/sup><\/a><\/span>\uff08\u4ed6\u306e\u8868\u73fe\u3082\u3042\u308b\u3068\u601d\u3044\u307e\u3059\u304c\uff09\u3002<\/p>\n\n\n\n \u306a\u306e\u3067\u3001\\boldsymbol{X}<\/span>\u304c\u305d\u306e\u6e90\u304b\u3089\u306e\u8ddd\u96e2\u3068\u5171\u306b\u5341\u5206\u306b\u306f\u3084\u304f\u6e1b\u8870\u3059\u308b\u306e\u3067\u3042\u308c\u3070\u3001\u9818\u57dfV<\/span>\u3092\u5341\u5206\u306b\u5927\u304d\u304f\u53d6\u308b\u3053\u3068\u306b\u3088\u308a\u9762\u7a4d\u5206\u306e\u9805\u306f\u6d88\u3048\u3066\u304f\u308c\u3066 <\/span>2<\/sup><\/a><\/span>\u3001<\/p>\n\n\n\n\\boldsymbol{X}(\\boldsymbol{r})=\\frac{1}{4\\pi}\\int_V \\left( \\nabla' \\cdot \\boldsymbol{X}(\\boldsymbol{r^{\\prime}}) +\\nabla' \\times \\boldsymbol{X}(\\boldsymbol {r'}) \\times \\right) \\nabla' \\frac{1}{\\left| \\boldsymbol{r}- \\boldsymbol{r'} \\right|}dV' <\/span>\n\n\n\n \u3068\u66f8\u3051\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067\u3001\u53f3\u8fba\u7b2c\uff11\u9805\u306b\u3064\u3044\u3066\u306f<\/p>\n\n\n\n\\nabla \\left( \\frac{\\nabla' \\cdot \\boldsymbol{X}(\\boldsymbol{r'})}{\\left| \\boldsymbol{r}- \\boldsymbol{r'} \\right| } \\right) =\\left( \\nabla'\\cdot \\boldsymbol{X}(\\boldsymbol{r'})\\right)\\nabla\\frac{1}{\\left| \\boldsymbol{r}-\\boldsymbol{r'} \\right|} + \\frac{1}{\\left| \\boldsymbol{r}- \\boldsymbol{r'} \\right|}\\nabla \\left( \\nabla'\\cdot \\boldsymbol{X}(\\boldsymbol{r'})\\right)= - \\left( \\nabla'\\cdot \\boldsymbol{X}(\\boldsymbol{r'})\\right)\\nabla'\\frac{1}{\\left| \\boldsymbol{r}-\\boldsymbol{r'} \\right|} <\/span>\n\n\n\n \u3068\u306a\u308a\u3001\u7b2c\uff12\u9805\u306b\u3064\u3044\u3066\u3082\u540c\u69d8\u306e\u5909\u5f62\u304c\u53ef\u80fd\u306a\u306e\u3067\u3001<\/p>\n\n\n\n\\boldsymbol{X}(\\boldsymbol{r})=-\\nabla \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\nabla' \\cdot \\boldsymbol{X}(\\boldsymbol{r^{\\prime}})}{ \\left| \\boldsymbol{r}-\\boldsymbol{r'} \\right| }\\right) dV' \\right\\} + \\nabla \\times \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\nabla' \\times \\boldsymbol{X}(\\boldsymbol{r^{\\prime}})}{ \\left| \\boldsymbol{r}-\\boldsymbol{r'} \\right| }\\right) dV' \\right\\} <\/span>\n\n\n\n \u3068\u306a\u308a\u307e\u3059<\/span>3<\/sup><\/a><\/span>\u3002<\/p>\n\n\n\n \u3053\u308c\u306f\u5373\u3061\u3001<\/p>\n\n\n\n \u3068\u3044\u3046\u3053\u3068\u3092\u793a\u3057\u3066\u3044\u308b\u3068\u3044\u3048\u307e\u3059\u3002<\/p>\n\n\n\n \u304a\u305d\u3089\u304f\u8272\u3005\u306a\u8a3c\u660e\u65b9\u6cd5\u304c\u3042\u308b\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u305d\u308c\u306a\u308a\u306b\u6d41\u308c\u304c\u660e\u77ad\u306a\u65b9\u6cd5\u3067\u3002<\/p>\n\n\n\n 2\u3064\u306e\u4efb\u610f\u306e\u30d9\u30af\u30c8\u30eb\\vec{X}<\/span>\u3068\\vec{Y}<\/span>\u306b\u3064\u3044\u3066\u3001 \u30d9\u30af\u30c8\u30eb\u6052\u7b49\u5f0f<\/p>\n\n\n\n\\nabla\\cdot\\left(\\vec{X}\\times\\nabla\\times\\vec{Y}\\right)=\\left( \\nabla\\times\\vec{X}\\right) \\cdot\\left( \\nabla\\times\\vec{Y}\\right) -\\vec{X}\\cdot \\left( \\nabla\\times\\nabla\\times\\vec{Y} \\right) <\/span>\n\n\n\n \u304c\u6210\u308a\u7acb\u3064\u3053\u3068\u304b\u3089\u3001\u3053\u308c\u3092\u9818\u57dfV'<\/span>\u3067\u4f53\u7a4d\u5206\u3057\u3001\u3055\u3089\u306b\u30ac\u30a6\u30b9\u306e\u767a\u6563\u5b9a\u7406\u3092\u4f7f\u3046\u3053\u3068\u3067<\/p>\n\n\n\n\\int_V \\left[ \\left( \\nabla\\times\\vec{X}\\right) \\cdot\\left( \\nabla\\times\\vec{Y}\\right) - \\vec{X}\\cdot \\left( \\nabla\\times\\nabla\\times\\vec{Y} \\right) \\right]dV'=\\int_S \\left(\\vec{X}\\times\\nabla\\times\\vec{Y}\\right)\\cdot\\vec{n}dS' <\/span>\n\n\n\n \u3068\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u51fa\u767a\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n \u6700\u7d42\u7684\u306b\\vec{X}<\/span>\u304c\\vec{X}<\/span>\u306e\u767a\u6563\u3068\u56de\u8ee2\u306e\u4f53\u7a4d\u5206\u3067\u8868\u3055\u308c\u308b\u3088\u3046\u306b\u3057\u305f\u3044\u306e\u3067\u3001\u9069\u5f53\u306a\u5b9a\u30d9\u30af\u30c8\u30eb\\vec{a}<\/span><\/span>4<\/sup><\/a><\/span>\u3001R=\\left|\\vec{r}-\\vec{r'}\\right|<\/span>\u3092\u7528\u3044\u3066\\vec{Y}=\\frac{\\vec{a}}{R}<\/span>\u3068\u304a\u304d\u3001\u6700\u7d42\u7684\u306b\u4e21\u8fba\u3092\\vec{a}<\/span>\u3067\u5272\u308b\u3053\u3068\u3092\u8003\u3048\u307e\u3059\u3002<\/p>\n\n\n\n \\vec{Y}=\\frac{\\vec{a}}{R}<\/span>\u3092\u4ee3\u5165\u3059\u308b\u3068\u3001\u4e0a\u8a18\u306e\u30d9\u30af\u30c8\u30eb\u30b0\u30ea\u30fc\u30f3\u306e\u516c\u5f0f\u306f<\/p>\n\n\n\n\\int_V \\left[ \\left( \\nabla\\times\\vec{X}\\right) \\cdot\\left( \\nabla\\times\\frac{\\vec{a}}{R}\\right) - \\vec{X}\\cdot \\left( \\nabla\\times\\nabla\\times \\frac{\\vec{a}}{R}\\right) \\right]dV'=\\int_S \\left(\\vec{X}\\times\\nabla\\times \\frac{\\vec{a}}{R} \\right)\\cdot\\vec{n}dS' <\/span>\n\n\n\n \u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u30d9\u30af\u30c8\u30eb\u89e3\u6790\u306e\u516c\u5f0f\\vec{X}\\cdot\\left(\\vec{Y}\\times\\vec{Z}\\right)= \\vec{Z}\\cdot\\left(\\vec{X}\\times\\vec{Y}\\right) <\/span>\u3092\u4f7f\u3063\u3066\\vec{a}<\/span>\u304c\u5916\u306b\u51fa\u308b\u3088\u3046\u306b\u4e0a\u5f0f\u3092\u5f0f\u5909\u5f62\u3057\u3066\u3086\u304f\u3068\u3001\u4f53\u7a4d\u5206\u306e\u4e2d\u306f<\/p>\n\n\n\n \\left\\{ \\vec{a}\\cdot\\left(\\nabla'\\times\\vec{X}\\times\\nabla'\\frac{1}{R}\\right)\\right\\} +\\left\\{ \\nabla'\\cdot\\left\\{ \\vec{X}\\left(\\vec{a}\\cdot\\nabla'\\frac{1}{R}\\right)\\right\\} -\\left(\\vec{a}\\cdot\\nabla'\\frac{1}{R}\\right)\\nabla'\\cdot\\vec{X} -\\vec{a}\\cdot\\vec{X}\\nabla'^2\\frac{1}{R}\\right\\} + \\left\\{ \\vec{a}\\cdot\\left\\{ \\left( \\vec{n}\\times\\vec{X}\\right) \\times\\nabla'\\frac{1}{R} \\right\\} \\right\\}<\/span>\n\n\n\n \u3068\u306a\u308a\u307e\u3059<\/span>5<\/sup><\/a><\/span>\u3002<\/p>\n\n\n\n \u3053\u3053\u3067\u3001\uff12\u3064\u76ee\u306e{}\u306e\u4e2d\u306e\uff11\u3064\u76ee\u306e\u9805\u306b\u3064\u3044\u3066\u306f\u3001\u30ac\u30a6\u30b9\u306e\u767a\u6563\u5b9a\u7406\u3092\u4f7f\u3046\u3053\u3068\u3067\u4f53\u7a4d\u5206\u3092\u9762\u7a4d\u5206\u306b\u5909\u63db\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u540c\u3058\u304f\uff12\u3064\u76ee\u306e{}\u306e\u4e2d\u306e\uff13\u3064\u76ee\u306e\u9805\u306f\u3001<\/p>\n\n\n\n\\int_V \\vec{a}\\cdot\\vec{X}\\nabla'^2\\frac{1}{R} dV'=\\vec{a}\\cdot\\left(-4\\pi\\vec{X}(\\vec{r})\\right)<\/span>\n\n\n\n \u3068\u306a\u308a\u307e\u3059<\/span>6<\/sup><\/a><\/span>\u3002<\/p>\n\n\n\n \u4ee5\u4e0a\u3092\u307e\u3068\u3081\u3066\u3001\u5171\u901a\u306e\\vec{a}<\/span>\u3067\u5272\u308b\u3068\u3001\u6700\u521d\u306b\u66f8\u3044\u305f\u30d8\u30eb\u30e0\u30db\u30eb\u30c4\u306e\u516c\u5f0f\u304c\u5f97\u3089\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u4e0a\u3067\u3082\u4f7f\u3063\u305f\\delta(\\vec{r}-\\vec{r'})=-\\frac{1}{4\\pi}\\nabla^2\\frac{1}{|\\vec{r}-\\vec{r'}|}<\/span>\u3092\u7528\u3044\u308b\u3068<\/span>7<\/sup><\/a><\/span>\u3001<\/p>\n\n\n\n\\vec{X}(\\vec{r})=\\int_v\\vec{X}(\\vec{r'})\\left( -\\frac{1}{4\\pi}\\nabla^2\\frac{1}{|\\vec{r}-\\vec{r'}|} \\right) dV' <\/span>\n\n\n\n \u3053\u308c\u3092<\/p>\n\n\n\n\\nabla\\frac{1}{|\\vec{r}-\\vec{r'}|}=-\\nabla' \\frac{1}{|\\vec{r}-\\vec{r'}|} <\/span>\n\n\n\n \u3068\u30d9\u30af\u30c8\u30eb\u89e3\u6790\u306e\u516c\u5f0f\u3092\u5229\u7528\u3057\u3066\u304c\u308a\u304c\u308a\u5f0f\u5909\u5f62\u3057\u3066\u3044\u3051\u3070\u3088\u3044\u3002<\/p>\n\n\n\n \u306e\u3060\u304c\u3061\u3087\u3063\u3068\u8abf\u3079\u305f\u3089\u3053\u306e\u624b\u9806\u306b\u3064\u3044\u3066\u306f\u82f1\u8a9e\u7248Wikipedia\u306b\u8a73\u7d30\u306a\u8aac\u660e<\/a>\u304c\u3042\u3063\u305f\u306e\u3067\u3001\u7565\u3002<\/p>\n\n\n\n \u306b\u3001\u9759\u96fb\u5834\u306b\u304a\u3051\u308bMaxwell\u65b9\u7a0b\u5f0f<\/p>\n\n\n\n\\nabla\\cdot\\vec{E}=\\rho\/\\varepsilon<\/span>\n\n\n\n <\/p>\n\n\n\n\\nabla\\times\\vec{E}=0<\/span>\n\n\n\n \u3092\u4ee3\u5165\u3059\u308b\u3068<\/p>\n\n\n\n\\vec{E}(\\vec{r})=-\\nabla \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\rho(\\vec{r^{\\prime}})\/\\varepsilon}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\} + \\nabla \\times \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{0}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\} <\/span>\n\n\n\n \u306a\u306e\u3067\u3001<\/p>\n\n\n\n\\vec{E}(\\vec{r})=-\\nabla\\phi<\/span>\n\n\n\n <\/p>\n\n\n\n \\phi= \\frac{1}{4\\pi\\varepsilon} \\int_V \\frac{\\rho(\\vec{r^{\\prime}})}{ \\left| \\vec{r}-\\vec{r'} \\right| }dV' <\/span>\n\n\n\n \u3068\u306a\u308a\u3001\u96fb\u5834\u3068\u96fb\u6c17\u30b9\u30ab\u30e9\u30fc\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u306e\u95a2\u4fc2\u3092\u793a\u3059\u5f0f\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u306b\u9759\u78c1\u5834\u306b\u304a\u3051\u308bMaxwell\u65b9\u7a0b\u5f0f<\/p>\n\n\n\n\\nabla\\cdot\\vec{B}=0<\/span>\n\n\n\n <\/p>\n\n\n\n\\nabla\\times\\vec{B}=\\mu\\vec{j}<\/span>\n\n\n\n \u3092\u4ee3\u5165\u3059\u308b\u3068<\/p>\n\n\n\n\\vec{B}(\\vec{r})=-\\nabla \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{0}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\} + \\nabla \\times \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\mu\\vec{j}}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\} <\/span>\n\n\n\n \u306a\u306e\u3067\u3001<\/p>\n\n\n\n\\vec{B}=\\nabla\\times\\vec{A}<\/span>\n\n\n\n <\/p>\n\n\n\n\\vec{A}= \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\mu\\vec{j}}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' <\/span>\n\n\n\n \u3068\u306a\u308a\u3001\u78c1\u675f\u5bc6\u5ea6\u3068\u78c1\u6c17\u30d9\u30af\u30c8\u30eb\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u306e\u95a2\u4fc2\u3092\u793a\u3059\u5f0f\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u30d8\u30eb\u30e0\u30db\u30eb\u30c4\u306e\u5b9a\u7406\u306b\u306f\u6642\u9593\u304c\u542b\u307e\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u3001\u3042\u308b\u70b9\u3067\u306e\u60c5\u5831\u304c\u77ac\u6642\u306b\u5168\u4f53\u306b\u4f1d\u308f\u308b\u3053\u3068\u3092\u524d\u63d0\u3068\u3057\u3066\u3044\u307e\u3059\u3002\u306a\u306e\u3067\u3001\u5b9f\u306f\u7269\u7406\u7684\u306b\u306f\u3061\u3087\u3063\u3068\u6b63\u3057\u304f\u306a\u3044\u306e\u3067\u3059\u304c\u3001\u3068\u308a\u3042\u3048\u305a\u96fb\u5834\u306b\u95a2\u3059\u308bMaxwell\u65b9\u7a0b\u5f0f<\/p>\n\n\n\n\\nabla\\cdot\\boldsymbol{E}=\\rho\/\\varepsilon<\/span>\n\n\n\n <\/p>\n\n\n\n\\nabla\\times\\boldsymbol{E}=-\\frac{\\partial \\boldsymbol{B}}{\\partial t}<\/span>\n\n\n\n \u3092\u4ee3\u5165\u3059\u308b\u3068<\/p>\n\n\n\n\\vec{E}(\\vec{r})=-\\nabla \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\rho(\\vec{r^{\\prime}})\/\\varepsilon}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\} + \\nabla \\times \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{-\\partial \\vec{B}(\\vec{r'})\/\\partial t}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\} = -\\nabla \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\rho(\\vec{r^{\\prime}})\/\\varepsilon}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\} - \\frac{\\partial}{\\partial t}\\nabla \\times \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{ \\vec{B}(\\vec{r}')}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\} <\/span>\n\n\n\n \u53f3\u8fba\u7b2c\uff11\u9805\u306f\u4e0a\u306e\u96fb\u6c17\u30b9\u30ab\u30e9\u30fc\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u3092\u4f7f\u3063\u3066-\\nabla\\phi<\/span>\u3068\u66f8\u3051\u307e\u3059\u3002\u7b2c\uff12\u9805\u306b\u3064\u3044\u3066\u306f<\/p>\n\n\n\n\\nabla \\times \\left\\{ \\int_V\\left( \\frac{ \\boldsymbol{B}(\\vec{r}')}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\}=\\int_V \\nabla\\frac{1}{\\left| \\vec{r}-\\vec{r'} \\right|}\\times\\vec{B}(\\vec{r'})dV' =-\\int_V \\nabla'\\frac{1}{\\left| \\vec{r}-\\vec{r'} \\right|}\\times\\vec{B}(\\vec{r'})dV' =\\int_V\\frac{\\nabla'\\times\\vec{B}(\\vec{r'})}{\\left| \\vec{r}-\\vec{r'} \\right|}dV'+\\int_V \\nabla'\\times\\frac{\\vec{B}(\\vec{r'})}{\\left| \\vec{r}-\\vec{r'} \\right|}dV' <\/span>\n\n\n\n \u3068\u306a\u308a\u307e\u3059\u304c\u3001\u6700\u5f8c\u306e\u9805\u306f\u9762\u7a4d\u5206\u306b\u5909\u3048\u308b\u3053\u3068\u304c\u3067\u304d<\/span>8<\/sup><\/a><\/span>\u3001\u7a4d\u5206\u9818\u57df\u3092\u5341\u5206\u306b\u5927\u304d\u304f\u3059\u308b\u3053\u3068\u30670\u306b\u306a\u308a\u307e\u3059\u3002\u306a\u306e\u3067\u3001\u7d50\u5c40<\/p>\n\n\n\n \\int_V\\frac{\\nabla'\\times\\vec{B}(\\vec{r'})}{\\left| \\vec{r}-\\vec{r'} \\right|}dV' = \\int_V\\frac{\\mu\\vec{j}(\\vec{r'})}{\\left| \\vec{r}-\\vec{r'} \\right|}dV' <\/span>\n\n\n\n <\/p>\n\n\n\n \u3068\u306a\u308a\u3001\u3053\u308c\u306f\u4e0a\u306e\u30d9\u30af\u30c8\u30eb\u30dd\u30c6\u30f3\u30b7\u30e3\u30eb\u306b\u4e00\u81f4\u3002\u5373\u3061\u3001<\/p>\n\n\n\n\\vec{E}=-\\nabla\\phi -\\frac{\\partial \\vec{A}}{\\partial t}<\/span>\n\n\n\n \u304c\u5f97\u3089\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n \u78c1\u5834\u306b\u3064\u3044\u3066\u306f\u3001\u4e0a\u306e\u5f0f\u5909\u5f62\u306e\u9014\u4e2d\u306e\u5f0f\u3092\u4f7f\u3063\u3066<\/p>\n\n\n\n\\nabla\\times\\vec{A}=\\vec{B}=\\nabla\\times \\frac{1}{4\\pi}\\int_V\\frac{\\nabla'\\times\\vec{B}(\\vec{r'})}{\\left| \\vec{r}-\\vec{r'} \\right|}dV' <\/span>\n\n\n\n\u8a3c\u660e<\/h2>\n\n\n\n
\u30d9\u30af\u30c8\u30eb\u30b0\u30ea\u30fc\u30f3\u306e\u516c\u5f0f\u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n
\u30c7\u30eb\u30bf\u95a2\u6570\u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3059\u308b\u65b9\u6cd5<\/h3>\n\n\n\n
\u96fb\u78c1\u6c17\u5b66I\u306e\u5185\u5bb9\u306b\u30d8\u30eb\u30e0\u30db\u30eb\u30c4\u306e\u5b9a\u7406\u3092\u9069\u7528<\/h2>\n\n\n\n
\u9759\u96fb\u5834\u306e\u5834\u5408<\/h3>\n\n\n\n\\vec{E}(\\vec{r})=-\\nabla \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\nabla' \\cdot \\vec{E}(\\vec{r^{\\prime}})}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV'\\right\\} + \\nabla \\times \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\nabla' \\times \\vec{E}(\\vec{r^{\\prime}})}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\} <\/span>\n\n\n\n
\u9759\u78c1\u5834\u306e\u5834\u5408<\/h3>\n\n\n\n\\vec{B}(\\vec{r})=-\\nabla \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\nabla' \\cdot \\vec{B}(\\vec{r^{\\prime}})}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right)dV' \\right\\} + \\nabla \\times \\left\\{ \\frac{1}{4\\pi} \\int_V\\left( \\frac{\\nabla' \\times \\vec{B}(\\vec{r^{\\prime}})}{ \\left| \\vec{r}-\\vec{r'} \\right| }\\right) dV' \\right\\} <\/span>\n\n\n\n
\u6642\u9593\u5909\u52d5\u3059\u308b\u5834\u5408<\/h3>\n\n\n\n