Question

The sensitivity of a potentiometer can be increased by 

(A) Decreasing the length of potentiometer wire 

(B) Increasing the length of potentiometer wire

(C) Increasing the emf of the cell in primary circuit 

(D) Decreasing the external resistance connected in primary circuit

Answer 1

Correct option: (B) Increasing the length of potentiometer wire

Explanation: 

The sensitivity of potentiometer can be increased by decreasing the potential gradient i.e. by increasing the length of potentiometer wire.