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There is a conducting rod of length 2L t...

There is a conducting rod of length `2L` that lies along x-axis from `x=-L` to `x=L`. If rod moves with velocity `(v=underset(0)(v)hati)` In the magnetic field `(vecB=underset(0)(B)hatk)`, then induced emf bbetween ends of rod is

A

Zero

B

`(2/3underset(0)(B)Lunderset(0)(v))`

C

`(1/3underset(0)(B)Lunderset(0)(v))`

D

`(2underset(0)(B)Lunderset(0)(v))`

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