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A conducting rod of length l slides at c...

A conducting rod of length `l` slides at constant velocity `v` on two parallel conducting rails, placed in a uniform and constant magnetic field `B` perpendicular to the plane of the rails as shown in Fig.3.49. A resistance `R` is connected between the two ends of the rails.

(a) Idenify the cause which produces change in magnetic flux.
(b) Identify the direction of current in the loop.
( c) Determine the emf induced in the loop.
(d) Compute the electric power dissipated in the resistor.
(e) Calcualte the mechenical power required to pull the rod at a cinstant velovity.

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