Physics · 2015
NEET 2015 · 3 May · Code E · Q32
An electron moving in a circular orbit of radius r makes n rotations per second. The magnetic field produced at the centre has magnitude:
An electron moving in a circular orbit of radius r makes $\displaystyle n$ rotations per second. The magnetic field produced at the centre has magnitude :
Official answer
(4)
$\displaystyle \frac{\mu_0 n e}{2 r}$
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