Question

The principle involved in potentiometer is

• A. variation of current with variati wire on in the diameter of the potentiometer
• B. similar to the principle of Wheatstone bridge
• C. variation of resistance with temperature
• D. both (a) and (b)

Answer 1

The correct option is B similar to the principle of Wheatstone bridge

The working principle of potentiometer depends upon the galvanometer null detection process.The functionality of a Wheatstone bridge is similar to the original potentiometer.