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electronics and communication engineering measurements and instrumentation
1. Potentiometer method of dc voltage measurement is more accurate than direct measurement using a voltmeter because
(A): it does not load the circuit at all
(B): it loads the circuit moderately
(C): it loads the circuit to maximum extent
(D): it uses centre zero galvanometer instead of Voltmeters
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By: guest on 02 Jun 2017 01.00 am
Since the circuit is not loaded, the accurate value of dc voltage is measured.
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