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The magnetic moment of a circular orbit ...

The magnetic moment of a circular orbit of radius r carrying a charge q and rotating with velocity v is given by _____ .

A

`(qvr)/(2pi)`

B

`(qvr)/(2)`

C

`qvpir`

D

`qvpir^(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Magnetic dipole moment
`=IA = (qf)xx pir^(2)`
`= q((v)/(2pir))xxpir^(2)=(qvr)/(2)`
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