JEE PHYSICS MCQ: CURRENT ELECTRICITY

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Assertion: Potentiometer measures the correct value of emf of a cell.
Reason: No current flows through the cell being balanced at the null point of potentiometer.

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Correct option: A

If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion

Option A is correct because a potentiometer measures EMF at a null point where no current flows, thus providing an accurate reading without drawing current from the cell.

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