Question

In the circuit shown the cells A and B have negligible resistances. For VA =12 V, R1 = 500 Ω and R = 100 Ω

Answer 1

Answer:

In the circuit shown in the cells A and B have negligible resistances. For VA =12 V, R1 = 500 Ω and R = 100 Ω the galvanometer (G) shows no deflection. Current (I) = Va/ (R1 + R) = 12 V/ (500 + 100)Ω = 12/ 600 A. The value of Vb = I * R = (12/ 600) * 100 Ω = 2V.