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M3P2
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bc9a8c13
Commit
bc9a8c13
authored
May 01, 2024
by
Claude Meny
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Update cheatsheet.fr.md
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12.temporary_ins/10.electrostatics-vacuum/20.causes-stationary-electric-field/20.overview/cheatsheet.fr.md
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@@ -105,7 +105,7 @@ avec *$`\mathbf{\overrightarrow{r_{12}}=\overrightarrow{r_2}-\overrightarrow{r_1
*
Reprenant les expressions précédentes de la force de Coulomb, le vecteur champ électrique s'écrit :
<br>
**$`\mathbf{\quad\overrightarrow{E_{12}=\dfrac{q_1}{4\pi\epsilon_0}\cdot\dfrac{\overrightarrow{P_1P_2}}{\lVert\overrightarrow{P_1P_2} \rVert^3}}`$**
**$`\mathbf{\quad\overrightarrow{E_{12}
}
=\dfrac{q_1}{4\pi\epsilon_0}\cdot\dfrac{\overrightarrow{P_1P_2}}{\lVert\overrightarrow{P_1P_2} \rVert^3}}`$**
<br>
*$`\mathbf{\quad\overrightarrow{E_{12}}=\dfrac{1}{4\pi\epsilon_0}\cdot \dfrac{q_1}{r_{12}^2}\cdot\overrightarrow{e_{12}}}`$*
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@@ -128,6 +128,8 @@ Plutôt que de s'intéresser à la force créée entre deux charges ponctuelles
*
La charge
=========================-->
<br>
#### Quelles sont les causes d'un champ électrique stationnaire ?
*
Les causes d'un champ magnétique sont des
**charges électriques immobiles**
dans le référentiel d'observation.
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