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An electron moving in a circular orbit...

An electron moving in a circular orbit of radius `r` makes `n` rotation per secound. The magnetic field produced at the centre has magnitude

A

`(mu_(0)n e)/(2r)`

B

`(mu_(0) n e)/(2pir)`

C

Zero

D

`(mu_(0)n^(2) e)/r`

Text Solution

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The correct Answer is:
A
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