Question

Sensitivity of potentiometer can be increased by

• A. Increasing the e.m.f. of the cell
• B. Increasing the length of the potentiometer wire
• C. Decreasing the length of the potentiometer wire
• D. None of the above

Answer 1

Answer: (B)

Increasing the length of the potentiometer wire

Answer 2

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

(Sensitivity ∝ $\frac{1}{P.G.} \propto \text{Length}$)