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a semicircle wire of radius R is rotated...

a semicircle wire of radius `R` is rotated with constant angular velocity about an axis passing through one end and perpendicular to the plane of wire. There is a uniform magnetic field of strength `B`. The induced emf between the ends is

A

`B omegaR^(2)//R`

B

`2B omegaR^(2)`

C

is variable

D

none of these

Text Solution

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The correct Answer is:
B
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