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 54 Q, and that in circuit 2 is 108 Q2. Determine (a) the ratio (1/52 of the emfs and (b) the ratio 11/12 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? (a) 1/2 Number 1 Conducting rail × x × x x x x x + x x x x x x x T Units (b) 11/12 Number 1 Units (c) P₁/P₂ = Number 1 Units

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 54 Q, and that in circuit 2 is 108 Q2. Determine (a) the ratio (1/52 of the emfs and (b) the ratio 11/12 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? (a) 1/2 Number 1 Conducting rail × x × x x x x x + x x x x x x x T Units (b) 11/12 Number 1 Units (c) P₁/P₂ = Number 1 Units