A calibrated potentiometer is used to measure the e.m.f. of a cell because the

Physics JAMB 1989

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 checkmark
  • resistance of the potentiometer is less than that of a voltmeter

The correct answer is: C

Explanation

No official explanation is available for this question at this time. Please check contributions posted by others below. If you can provide an explanation to help other student learn.
Previous Question Next Question

Leave A Comment