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A straight wire of length L is bent into...

A straight wire of length `L` is bent into a semicircle. It is moved in a uniform magnetic field with speed `v` with diameter perpendicular to the field. The induced emf between the ends of the wire is

A

`BLv`

B

`2BKv`

C

`2piBLv`

D

`(2BvL)/(pi)`

Text Solution

Verified by Experts

The correct Answer is:
D
Induced emf `e=Bvlimpliese=Bv(2R)=(2BvL)/(pi)`
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