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An electron moving in a circular orbit o...

An electron moving in a circular orbit of radius `R` with frequency `f`. The magnetic field at the centre of the orbit is

A

`(mu_0ef)/(2piR)`

B

`(mu_0ef)/(2R)`

C

`(muef^2)/(2R)`

D

zero

Text Solution

Verified by Experts

The correct Answer is:
B
Equivalent current
`ii=qf=ef`
`B=(mu_0i)/(2R)=(mu_0ef)/(2R)`
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