In the circuit shown, the galvanometer shows zero current. The value of resistance R is :

In the circuit shown below, the ammeter reading is zero. Then, the value of the resistance R is

In the circuit , the galvanometer G shows zero deflection. If the batteries A and B have negligible internal resistance the value of othe resistor R will be

In the given circuit, the galvanometer will not show any deflection if the value of the resistance X is

In the circuit, the galvanometer G shows zero deflection. If the batteries A and b have negligible internal resistance, the value of the resistor R will be -