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phys: Correct electromagnetic force symbol

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eggy 2021-07-08 18:29:09 -04:00
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@ -56,7 +56,7 @@ $$|F_m|=qvB\sin\theta$$
Regardless of $\theta$, the force vector is always perpendicular to both $B$ and $v$,
The above equation can be rearranged to find **electromagnetic** force in terms of current and wire length in a **uniform magnetic field**:
$$|F_em|=BIL\sin\theta$$
$$|F_{em}|=BIL\sin\theta$$
<img src="/resources/images/magnet-on-wire.png" width=700>(Source: Kognity</img>