Q49. To measure an A.C. voltage by using an A.C potentiometer, it is desirable that the supply for the potentiometer is taken?Physics — Alternating Current — Question 49 of 95A. From a source which is not the same as the unknown voltage.B. From a battery.C. From the same source as the unknown voltageD. Any of the above Practice more Physics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →