Commit 176d06d3 authored by Claude Meny's avatar Claude Meny

Update cheatsheet.fr.md

parent a7a4a8ee
Pipeline #16178 canceled with stage
......@@ -199,19 +199,23 @@ Image à faire
* Si **$`\mathbf{\overrightarrow{dl}=+\,\rho_M\,\overrightarrow{e_{\varphi}}}`$** :
<br>
**$`\mathbf{\oint_{\Gamma_A}\overrightarrow{B}\cdot\overrightarrow{dl}}`$**
$`\quad=\oint_{\varphi=0}^{\varphi=2\pi}\big(B_{\varphi}(\rho_M)\,\overrightarrow{e_{\varphi}}\big)\cdot \big(+\rho_M\,d\varphi\,\overrightarrow{e_{\varphi}}\big)`$
$`\displaystyle\quad=\oint_{\varphi=0}^{\varphi=2\pi}\big(B_{\varphi}(\rho_M)\,\overrightarrow{e_{\varphi}}\big)\cdot \big(\rho_M\,d\varphi\,\overrightarrow{e_{\varphi}}\big)`$
$`\displaystyle\quad=\oint_{\varphi=0}^{\varphi=2\pi}B_{\varphi}(\rho_M)\,\rho_M\,\big(\overrightarrow{e_{\varphi}}\cdot \overrightarrow{e_{\varphi}}\big) d\varphi`$
$`\displaystyle\quad=\rho_M\,B_{\varphi}(\rho_M)\,\oint_{\varphi=0}^{\varphi=2\pi}d\varphi`$
$`\quad=\oint_{\varphi=0}^{\varphi=2\pi}\big(B_{\varphi}(\rho_M)\,\overrightarrow{e_{\varphi}}\big)\cdot \big(+\rho_M\,d\varphi\,\overrightarrow{e_{\varphi}}\big)`$
$`\displaystyle\quad=\oint_{\varphi=0}^{\varphi=2\pi}B_{\varphi}(\rho_M)\,\rho_M\,\big(\overrightarrow{e_{\varphi}}\cdot \overrightarrow{e_{\varphi}}\big) d\varphi`$
$`\displaystyle\quad=\rho_M\,B_{\varphi}(\rho_M)\,\oint_{\varphi=0}^{\varphi=2\pi}d\varphi`$
**$`\mathbf{\displaystyle\quad= 2\pi\,\rho_M\, B_{\varphi}(\rho_M)}`$**
* Si *$`\mathbf{\overrightarrow{dl}=-\,\rho_M\,\overrigharrow{e_{\varphi}}}`$* :
* Si *$`\mathbf{\overrightarrow{dl}=-\,\rho_M\,\overrightarrow{e_{\varphi}}}`$* :
<br>
*$`\mathbf{\oint_{\Gamma_A}\overrightarrow{B}\cdot\overrightarrow{dl}}`$*
$`\displaystyle\quad=\oint_{\varphi=0}^{\varphi=2\pi}\big(B_{\varphi}(\rho_M)\,\overrightarrow{e_{\varphi}}\big)\cdot \big(-\rho_M\,d\varphi\,\overrightarrow{e_{\varphi}}\big)
$`\displaystyle\quad=-\oint_{\varphi=0}^{\varphi=2\pi}\big(B_{\varphi}(\rho_M)\,\overrightarrow{e_{\varphi}}\big)\cdot \big(\rho_M\,d\varphi\,\overrightarrow{e_{\varphi}}\big)`$
$`\displaystyle\quad=\oint_{\varphi=0}^{\varphi=2\pi}\big(B_{\varphi}(\rho_M)\,\overrightarrow{e_{\varphi}}\big)\cdot \big(-\rho_M\,d\varphi\,\overrightarrow{e_{\varphi}}\big)`$
$`\displaystyle\quad=-\oint_{\varphi=0}^{\varphi=2\pi}B_{\varphi}(\rho_M)\,\rho_M\,\big(\overrightarrow{e_{\varphi}}\cdot \overrightarrow{e_{\varphi}}\big) d\varphi`$
$`\displaystyle\quad=-\rho_M\,B_{\varphi}(\rho_M)\,\oint_{\varphi=0}^{\varphi=2\pi}d\varphi`$
*$`\mathbf{\displaystyle\quad= -\,2\pi\,\rho_M\, B_{\varphi}(\rho_M)}`$*
......
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