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Assertion: A potentiometer is preferred over a voltmeter for measurement of a cell. Reason: Potentiometer does not draw any current from the

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Assertion: A potentiometer is preferred over a voltmeter for measurement of a cell.
Reason: Potentiometer does not draw any current from the cell.
Options:
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false and R is also false.

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