Name a device that helps to measure the potential difference across a conductor?

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Voltmeter

Ammeter

Both 1 and 2

None of these

answer is A.

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Detailed Solution

Ammeter is a device that helps to measure the potential difference across a conductor.
A voltmeter, also referred to as a voltage metre, is an instrument used for measuring the potential difference or voltage between two points in an electrical or digital circuit. A few voltmeters are intended to be used in direct current (DC) circuits; others are designed for alternating current (AC) circuits.

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