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M3P2
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fcb8cc4a
Commit
fcb8cc4a
authored
Mar 28, 2024
by
Claude Meny
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Update cheatsheet.fr.md
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12.temporary_ins/20.magnetostatics-vacuum/30.ampere-therorem-demonstration/20.overview/cheatsheet.fr.md
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@@ -469,10 +469,13 @@ de l'espace dite "de la main droite"**.
Partant de la loi de Biot et Savart, le théorème d'Ampère montre que :
*
La
**circulation du champ d'induction magnétique $`B`$ le long du contour C**
est égale à la
*somme algébrique des courants électriques traversant la surface S*
,
<br><br>
**$`\oint_C \overrightarrow{B} \cdot \overrightarrow{dl} = \mu_0 \cdot \sum_n \overline{I_n}`$**
<br>
est égale à la
*somme algébrique des courants électriques traversant la surface S*
,
<br><br>
**$`\Large\mathbf{\boldsymbol{\oint_C \overrightarrow{B} \cdot \overrightarrow{dl} = \mu_0 \cdot \sum_n \overline{I_n}}}`$**
<br>
ou, ce qui revient au même, au
*flux du vecteur densité volumique de courant à travers la surface S*
<br><br>
**$`\oint_C \overrightarrow{B} \cdot \overrightarrow{dl} = \mu_0 \cdot \iint_S \overrightarrow{j} \cdot \overrightarrow{dS}`$**
**$`\Large\mathbf{\boldsymbol{\oint_C \overrightarrow{B} \cdot \overrightarrow{dl} = \mu_0 \cdot \iint_S \overrightarrow{j} \cdot \overrightarrow{dS}}}`$**
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