If the galvanometer in the circuit of figure reads zero, calculate the value of the resistor R (ion `Komega`) assuming that the 12 V source has negligble internal resistance.

If the deflection of galvanometer in Wheatstone circuit is zero, the value of resistance will be

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

In the circuit given below the ammeter reading is zero. What is the value of the resistance R ?

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

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

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

If deflection in galvanometer in above circuit is zero then find value of R. Internal resistance of 12 V source is negligible. Will the galvanometer show some deflection if cold air is passed on 10 k Omega wire wound resistor ?