Potentiometer is superior to voltmeter because

Potentiometer is better than voltmeter for measuring emf because (i) It is cheap (ii) Easy to handle (iii) Its measurement uses null method

Why is potentiometer preferred to voltmeter for the measurement of emf of a cell? Explain.

(A): Potentiometer is much better than a Voltmeter for measuring emf of cell (R): A potentiometer draws no current while measuirng emf of a cell at balancing point.

For measurement of potential difference, potentiometer is perferred in comparison to voltmeter because

For measurement of potential difference, potentiometer is perferred in comparison to voltmeter because

State the uses of a potentiometer. Why is a potentiometer preferred over a voltmeter for measuring emf?