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A metal rod of length 2 m is rotating wi...

A metal rod of length `2 m` is rotating with an angular velocity of `100 rad//sec` in a plane perpendicular to a uniform magnetic field of `0.3 T`. The potential difference between the ends of the rod is

A

`2.28 V`

B

`4.28 V`

C

`6.28 V`

D

`2.5 V`

Text Solution

Verified by Experts

The correct Answer is:
C
`e=(1)/(2)Bl^(2)omega=Bl^(2)piv`
`e=0.5(20xx10^(-2))^(2)xx3.14x100=628V`
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