To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken?

asked Mar 21, 2018 in Electrical Measurements and Instrumentation by
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To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken from the same source as the unknown voltage.

answered Mar 21, 2018 by