# Two circuits contain an emf produced by a moving metal rod,

Two circuits contain an emf produced by a moving metal rod, like that shown in the drawing. The speed of the rod is the same in each circuit, but the bulb in circuit 1has one-half the resistance of the bulb in circuit 2. The circuits are otherwise identical. The resistance of the light bulb in circuit 1 is 47 O, and that in circuit2 is 94 O. Determine (a) the ratio e1/e2 of the emfs and (b) the ratio I1/I2 of the currents in the circuits. (c) If the speed of the rod in circuit 1 were twice thatin circuit 2, what would be the ratio P1/P2 of the powers in the circuits?