A potentiometer measures the electromotive force (emf) of a cell more accurately than a standard voltmeter because:

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Physics · Current Electricity

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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It draws no current from the cell at the balance point

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Answer 1

It uses a wire of extremely low resistance

Answer 2

It uses a wire of extremely high resistance

Answer 3

It draws a heavy current from the external circuit

Answer 4

It draws no current from the cell at the balance point

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