Discussion :: Measurements and Instrumentation
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Potentiometer method of dc voltage measurement is more accurate than direct measurement using a voltmeter because
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A.
it loads the circuit to maximum extent
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B.
it loads the circuit moderately
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C.
it does not load the circuit at all
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D.
it uses centre zero galvanometer instead of Voltmeters
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Answer : Option C
Explanation :
Since the circuit is not loaded, the accurate value of dc voltage is measured.
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