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A conducting rod AB of length l is rotat...

A conducting rod AB of length l is rotated about point O with an angular velocity velocity omega in a uniform magnetic field (B_0) directed perpendicular into the plane of rotation as shown in the figure. The value of `V_B - V_A` is

A

`-1/6B_0l^2omega`

B

`1/6B_0^2omega`

C

`1/18B_0l^2omega`

D

`-1/18B_0l^2omega`

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