Question

The galvanometer, in each of the two given circuits, does not show any deflection. Find the ratio of the resistors R₁, and R₂, used in these two circuits.

Answer 1

For circuit 1, we have, (from the Wheatstone bridge balance condition),

In circuit 2, the interchange of the positions of the battery and the galvanometer, does not change the (Wheatstone Bridge) balance condition