If there is no deflection in the galvanometer connected in a circuit shown in figure, then the ratio of lengths AC/CB is

In the circuit shown in figure, the ratio

A galvanometer connected in an a.c. circuit does not show any deflection . Why?

Refer to the figure. Deflection in the galvanometer (G) occurs, when.

In the following diagram the deflection in the galvanometer in a potentiometer circuit is zero. Then:-

In the following diagram the deflection in the galvanometer in a potentiometer circuit is zero. Then:-

In the following diagram the deflection in the galvanometer in a potentiometer circuit is zero. Then:-

Will the compass needle show deflection when the switch in the circuit shown by figure is closed?

In the below circuit , AB is a wire of length 100 cm with 5Omega resistance . If there is no deflection in the galvanometer , the current flowing in the wire AB is

In the below circuit , AB is a wire of length 100 cm with 5Omega resistance . If there is no deflection in the galvanometer , the current flowing in the wire AB is

Two tangent galvanometers, which are identical except in their number of turns, are connected in parallel. The ratio of their resistance of the coils is 1 : 3 . If the deflections in the two tangent galvanometers are 30^@ and 60^@ respectively, then the ratio of their number of turns is