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M3P2
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ea9dacc1
Commit
ea9dacc1
authored
Aug 25, 2023
by
Claude Meny
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Update cheatsheet.fr.md
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cheatsheet.fr.md
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12.temporary_ins/20.magnetostatics-vacuum/40.ampere-theorem-applications/30.cylindrical-current-distributions/10.rectilinear-current/10.ampere-integral/20.overview/cheatsheet.fr.md
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ea9dacc1
...
@@ -192,9 +192,19 @@ Image à faire
...
@@ -192,9 +192,19 @@ Image à faire
figure explicative à faire.
figure explicative à faire.
####
Que vaut la circulation de $`
\o
verrightarrow{B}
`$ le long de $`
\m
athbf{
\G
amma_A}
`$
?
####
Le choix de l'orientation est-il important
?
* Son **signe** *dépend de l'orientation choisie* sur $`
\m
athbf{
\G
amma_A}
`$
* Ne pas oublier d'**orienter le contour d'Ampère** est **important**.
* Choisir **un sens plutôt que l'autre** n'a *pas d'importance*.
En effet
#### Que vaut la circulation de $`
\o
verrightarrow{B}
`$ le long de $`
\G
amma_A
`$ ?
* Le **signe** devant l'expression finale contenant $`
B_{
\v
arphi}(r)
`$ *dépend de l'orientation choisie* sur $`
\m
athbf{
\G
amma_A}
`$
* Si **$`
\m
athbf{
\o
verrightarrow{dl}=+
\,\r
ho_M
\,
d
\v
arphi
\,\o
verrightarrow{e_{
\v
arphi}}}
`$** :
* Si **$`
\m
athbf{
\o
verrightarrow{dl}=+
\,\r
ho_M
\,
d
\v
arphi
\,\o
verrightarrow{e_{
\v
arphi}}}
`$** :
<br>
<br>
...
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