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A metallic rod of 1 m length is rotated ...

A metallic rod of 1 m length is rotated with a frequency of 50 `rev//s`, with on end hinged at the centre and the other end at the circumference of a circular metallic ring of radius 1 m, about an axis passing through the centre and perpendicular at to the plane of the ring. A constant uniform magnetic field of 1 T parallel to the axis is persent eveywhere. what is the e.m.f. between the centre and the metallic ring?

A

157V

B

117V

C

127V

D

137V

Text Solution

Verified by Experts

The correct Answer is:
A
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