A conductor bar ab of length 0.6 m is moving on two conductingrails with a speed

Question

A conductor bar ab of length 0.6 m is moving on two conductingrails with a speed v = 3.6 m/s perpendicular to a uniform magneticfield of B=0.35 T. a.) find the electromotive force in the bar b.) the end point in a and b which has a higherpotential c.) the electric power consumed in the loop, where the totalresistance in the loop is 6.0 A conductor bar ab of length 0.6 m is moving on two conductingrails with a speed v = 3.6 m/s perpendicular to a uniform magneticfield of B=0.35 T. a.) find the electromotive force in the bar b.) the end point in a and b which has a higherpotential c.) the electric power consumed in the loop, where the totalresistance in the loop is 6.0

Explanation / Answer

length of the conductor bar L = 0.6 m speed of rails   v = 3.6 m/s magnitude of magnetic field  B   = 0.35 T electromotive force on the bar               = B L v                =   0.35 * 0.6 * 3.6                 = 0.756 V       Resistance in theloop   R   = 6    Current through the conductor I = / R                  = 0.756   / 6                   = 0.126 A    Power consumed in the loop                P = I2 R                    = 0.126 2 * 6                     = 0.095 W

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