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Figure shows a conducting rod of negligi...

Figure shows a conducting rod of negligible resistance that can slide on smooth U-shaped rail made of wire of resistance `1Omega//m`. Position of the conducting rod at `t=0` is shown. A time dependent magnetic field `B=2t` tesla is switched on at `t=0`
The magnitude of the force required to move the conducting rod at constant speed 5cm/s at the same instant `t=2s`, is equal to

A

0.16N

B

0.12 N

C

0.08 N

D

0.06 N

Text Solution

Verified by Experts

The correct Answer is:
C
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