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A thin circular disk of radius R is unif...

A thin circular disk of radius `R` is uniformly charged with density `sigma gt 0` per unit area.The disk rotates about its axis with a uniform angular speed `omega`.The magnetic moment of the disk is :

A

`2piR^(4)sigmaomega`

B

`piR^(4)sigmaomega`

C

`(piR^(4))/(2)sigmaomega`

D

`(piR^(4))/(4)sigmaomega`

Text Solution

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The correct Answer is:
D
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