Question

Why is a potentiometer preferred over a voltmeter give reason?

Answer 1

Explanation:

As a result, the voltmeter measures terminal potential difference between the two poles of the cell, which is always less than e.m.f of the cell. ... For these reasons, a potentiometer is preferred over a voltmeter for measuring e.m.f of a cell

Answer 2

Hello mate

Answer-

As a result, the voltmeter measures terminal potential difference between the two poles of the cell, which is always less than e.m.f of the cell. ... Hence, it measures e.m.f of the cell. For these reasons, a potentiometer is preferred over a voltmeter for measuring e.m.f of a cell.