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Force on a Finite Wire

A conducting ...

Question

A conducting bar of mass m and length l moves on two frictionless parallel rails in the presence of a constant uniform magnetic field of magnitude B directed into the page as shown in the figure. The bar is given an initial velocity $v_{0}$ towards the right at $t = 0$ . Then the

A

Induced current in the circuit is in the clockwise direction

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B

Velocity of the bar decreases linearly with time

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C

Distance the bar travels before it comes to a complete stop is proportional to R

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D

Power generated across the resistance is proportional to

l

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