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 1 has 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 58 ?, and that in circuit 2 is 116 ?. Determine
(a) the ratio ?1/?2 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 that in circuit 2, what would be the ratio P1/P2 of the powers in the circuits?