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A metal disc of radius R rotates with an...

A metal disc of radius R rotates with an angular velcoity `omega` about an axis perpendiclar to its plane passing through its centre in a magnetic field B acting perpendicular to the plane of the disc. Calculate the induced emf between the rim and the axis of the disc.

A

`B pi R^2 omega`

B

`BR^2omega`

C

`1/2 B piR^2omega`

D

`1/2 BR^2omega`

Text Solution

Verified by Experts

The correct Answer is:
D
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