Update cheatsheet.fr.md

12.temporary_ins/20.magnetostatics-vacuum/10.effects-stationary-magnetic-field/20.overview/cheatsheet.fr.md

@@ -167,15 +167,20 @@ $`\quad\quad\Longrightarrow \overrightarrow{dF_{mag}}= \dens_{libre} \cdot d\tau
 &= \underbrace{\overrightarrow{j}_{cond}}\cdot\overrightarrow{dS}}_{\color{blue}{=\,I}}\;\overrightarrow{dl}\wedge\overrightarrow{B}
 \end{align}`$
 
+**$`\mathbf{\overrightarrow{dF}_{Laplace}}`$** *$`\begin{align}\;
+&= \dens_{libre} \cdot \underbrace{d\tau}_{\color{blue}{\;\;=\\dS\,dl}} \cdot (\overrightarrow{v}_{dér\,/\,dC} \wedge \overrightarrow{B})\\
 \\
-\\
-& \underbrace{\overrightarrow{j}_{cond}
+&=\underbrace{(\dens_{libre}\cdot \overrightarrow{v}_{dér\,/\,dC}}_{\color{blue}{=\,\overrightarrow{j}_{cond}}}
+   \cdot \underbrace{dS}_{\color{blue}{\vec{dS}\parallel\vec{v}}}\cdot \underbrace{dl}_{\color{blue}{\vec{dl}\parallel\vec{v}}}}) \wedge \overrightarrow{B}
+\end{align}`$
+
+**$`\mathbf{\overrightarrow{dF}_{Laplace}}`$** *$`\begin{align}\;
+&= \dens_{libre} \cdot \underbrace{d\tau}_{\color{blue}{\;\;=\\dS\,dl}} \cdot (\overrightarrow{v}_{dér\,/\,dC} \wedge \overrightarrow{B})
+\end{align}`$
+
+
 
 
-`$*   
-$`\hspace{2cm} = \; \dens_{libre} \cdot (\overrightarrow{v}_{dér\,/\,dC}\,dS\,dl \wedge \overrightarrow{B})`$   
-<br>
- Au final (à terminer d'expliquer)   
 <br>
 **$`\mathbf{\large{\overrightarrow{dF}_{Laplace}=I\,\overrightarrow{dl}\wedge\overrightarrow{B}}}`$**