" Explain the principle of potentiometer."

Explain the principle of a potentiometer. How will you compare the e.m.f. of two primary cells by using potentiometer? Explain with proper circuit diagram.

A. Potentiometer measures the potential difference more accurately than a voltmeter, because the potentiometer a. does not draw current from external circuit. b. has a wire of high resistance. c. draws a heavy current from external circuit. d. has a wire of low resistance. B. With the help of a diagram explain the principle of a potentiometer.

State and explain principle of potentiometer.

State the principle of potentiometer.

State the principle of potentiometer.

Explain the principle fo Potentiometer. Draw the labelled circuit diagram for comparing of emf of two cells ?

What is potentiometer ? Explain principle of potentiometer.