Two circuits contain an emf produced by a moving metal rod, like that shown in t
ID: 2154763 • Letter: T
Question
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 237 ?, and that in circuit 2 is 474 ?.
(b) Determine the ratioI1/I2of 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 ratioP1/P2of the powers in the circuits?
Explanation / Answer
a) equeval b) 2 c) 8