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	<title>Vector potential from a magnetic dipole moment - 편집 역사</title>
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	<updated>2026-04-26T04:54:18Z</updated>
	<subtitle>이 문서의 편집 역사</subtitle>
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		<id>https://comphy.mju.ac.kr/juhapruopenwiki/index.php?title=Vector_potential_from_a_magnetic_dipole_moment&amp;diff=364&amp;oldid=prev</id>
		<title>Jwlee: 새 문서:     Magnetic Vector potential은 다음과 같이 구한다.    &lt;math&gt;  \vec{A} ( \vec{r} )  =  k_m \int \frac{ \vec{J} (\vec{r}&#039;) }{ |r-r&#039;| } dV&#039; &lt;/math&gt;    line current 에 의해서는      &lt;math&gt;  \vec{A} ( \vec{r} )  =  k_m  I \int \frac{ 1   }{ |r-r&#039;| } d \vec{ \ell }  &#039; &lt;/math&gt;    Magnetic Field는 &lt;math&gt;  \nabla \times \vec{A} &lt;/math&gt; 이므로,    &lt;math&gt;  \vec{B} (\vec{r} )  =  k_m  I  \int \nabla \times \frac{1}{ |r-r&#039; | } d\vec{\ell }&#039; &lt;/math&gt;    &lt;math&gt; \vec{A} &lt;/math...</title>
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		<updated>2024-03-14T10:59:34Z</updated>

		<summary type="html">&lt;p&gt;새 문서:     Magnetic Vector potential은 다음과 같이 구한다.    &amp;lt;math&amp;gt;  \vec{A} ( \vec{r} )  =  k_m \int \frac{ \vec{J} (\vec{r}&amp;#039;) }{ |r-r&amp;#039;| } dV&amp;#039; &amp;lt;/math&amp;gt;    line current 에 의해서는      &amp;lt;math&amp;gt;  \vec{A} ( \vec{r} )  =  k_m  I \int \frac{ 1   }{ |r-r&amp;#039;| } d \vec{ \ell }  &amp;#039; &amp;lt;/math&amp;gt;    Magnetic Field는 &amp;lt;math&amp;gt;  \nabla \times \vec{A} &amp;lt;/math&amp;gt; 이므로,    &amp;lt;math&amp;gt;  \vec{B} (\vec{r} )  =  k_m  I  \int \nabla \times \frac{1}{ |r-r&amp;#039; | } d\vec{\ell }&amp;#039; &amp;lt;/math&amp;gt;    &amp;lt;math&amp;gt; \vec{A} &amp;lt;/math...&lt;/p&gt;
&lt;p&gt;&lt;b&gt;새 문서&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&lt;br /&gt;
&lt;br /&gt;
  Magnetic Vector potential은 다음과 같이 구한다.&lt;br /&gt;
&lt;br /&gt;
  &amp;lt;math&amp;gt;  \vec{A} ( \vec{r} )  =  k_m \int \frac{ \vec{J} (\vec{r}&amp;#039;) }{ |r-r&amp;#039;| } dV&amp;#039; &amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
  line current 에 의해서는&lt;br /&gt;
&lt;br /&gt;
 &lt;br /&gt;
  &amp;lt;math&amp;gt;  \vec{A} ( \vec{r} )  =  k_m  I \int \frac{ 1   }{ |r-r&amp;#039;| } d \vec{ \ell }  &amp;#039; &amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
  Magnetic Field는 &amp;lt;math&amp;gt;  \nabla \times \vec{A} &amp;lt;/math&amp;gt; 이므로,&lt;br /&gt;
&lt;br /&gt;
  &amp;lt;math&amp;gt;  \vec{B} (\vec{r} )  =  k_m  I  \int \nabla \times \frac{1}{ |r-r&amp;#039; | } d\vec{\ell }&amp;#039; &amp;lt;/math&amp;gt;&lt;br /&gt;
&lt;br /&gt;
  &amp;lt;math&amp;gt; \vec{A} &amp;lt;/math&amp;gt; 를 multipole expansion을 하고 dipole term만 keep하면&lt;br /&gt;
&lt;br /&gt;
  &amp;lt;math&amp;gt;  \vec{A} ( \vec{r} )  =  k_m \frac{  \vec{m} \times \hat{r} } { r^2 }  &amp;lt;/math&amp;gt;&lt;/div&gt;</summary>
		<author><name>Jwlee</name></author>
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