Computer Programming MCQs Electrical Engineering Mcqs
Q To measure an A. C. voltage by using an A.C. potentiometer, it is desirable that the supply for the potentiometer in taken_______________?
  • A A. From a source which is not the same as the unknown voltage
  • B B. From a battery
  • C C. From the same source as the unknown voltage
  • D D. Any of the above
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