An electron moves in a circular orbit with a uniform speed \( v \).... VIDEO
An electron moves in a circular orbit with a uniform speed \( v \). It produces a magnetic field \( B \) at the centre of the circle. The radius of the circle is proportional to
(a) \( \frac{B}{v} \)
(b) \( \frac{v}{B} \)
- (c) \( \sqrt{\frac{v}{B}} \)
(d) \( \sqrt{\frac{B}{v}} \)
\( \mathrm{P} \)
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