Question

Mention the condition in which charges can move in a conductor. Name the device used to maintain this condition in an electric corcuit

Answer 1

Answer:

condition is when the conductor is negative charged

voltmeter

Answer 2

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Charge can move in a conductor only when a potential difference is maintained between it's ends .

A cell or a battery is used to maintain potential difference and hence , there is a flow of electric charges in an electric circuit .

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