Name a device that helps to maintain potential difference across a conductor.

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Solution

An electron moves in a circuit from one point to the other only if there is some potential difference between these points.
It is the battery or a cell connected in the circuit that maintains the potential difference across a conductor.
Hence, a battery or a cell helps to maintain a potential difference across a conductor.

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Q. Question 1
Name a device that helps to maintain a potential difference across a conductor.

Name the device that is used for measuring potential difference across a conductor?

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