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An electron of charge e is going around ...

An electron of charge e is going around in an orbit of radius R meters in a hydrogen atom with velocity v `m//sec`. The magnetic flux density associated with it at its centre is

A

`(pi n e r^(2) m)/(M+m)`

B

`pi n e r^(2)`

C

`(pi n e r^(2))/m`

D

`(pi n e r^(2)m)/M`

Text Solution

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-MOVING CHARGE AND MAGNESIUM-SECTION B
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