A calibrated potentiometer is used to measure the e.m.f. ...
A calibrated potentiometer is used to measure the e.m.f. of a cell because the
internal resistance of a cell is small compared with that of the potentiometer
potentiometer has a linear scale
potentiometer takes no current from the cell
resistance of the potentiometer is less than that of a voltmeter
Correct answer is C
No explanation has been provided for this answer.