Assertion :A potentiometer is preferred over a voltmeter for the measurement of emf of a cell. Reason: A potentiometer is preferred, as it does not drawn any current from the cell.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Assertion is incorrect but Reason is correct

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
In a balanced condition, the potentiometer does not draw any current, and hence does not disturb the circuit.

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Assertion :A potentiometer is preferred over a voltmeter for the measurement of emf of a cell. Reason: A potentiometer is preferred, as it does not drawn any current from the cell.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for AssertionIn a balanced condition, the potentiometer does not draw any current, and hence does not disturb the circuit.

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
In a balanced condition, the potentiometer does not draw any current, and hence does not disturb the circuit.