How can the sensitivity of a potentiometer be increased?

In the figure a long uniform potentiometer wire AB is having a constant potential gradient along its length. The null points for the two primary cells of emfs epsilon_(1) " and " epsilon_(2) connected in the manner shown are obtained at a distance of 120 cm and 300 cm from the end A. Find (i) epsilon_(1)//epsilon_(2) and (ii) position of null point for the cell epsilon_(1) . How is the sensitivity of a potentiometer increased ?

The sensitivity of a potentiom eter is increased b y

Sensitivity of potentiometer can be increased by

The sensitivity of the potentiometer can be increased by

Which of the following operations will not increase the sensitivity of a potentiometer?

The sensitivity of a tangent galvanometer increases if