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The net resistance of a voltmeter should be large to ensure that

$\begin {array} {1 1} (A)\;It \: does\: not\: get\: overheated \\ (B)\;It\: draws\: sufficient\: current \: from\: the \: circuit\: necessary \: for\: its \: functioning \\ (C)\;It\: can\: measure\: large\: potential\: differences \\ (D)\;It \: does\: not \: appreciably\: change\: the \: potential\: difference\: to\: be \: measured \end {array}$


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Factual Question.  Based on basic construction and implementation of voltmeter, the voltmeter is connected in parallel in acircuit , it should not change the potential difference to be measured
Ans : (D)


answered Feb 3, 2014 by thanvigandhi_1
edited Aug 22, 2014 by thagee.vedartham

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