Which device helps to maintain a potential difference across a conductor?

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Cell

Battery

Both 1 and 2

None

answer is C.

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Detailed Solution

A cell or a battery helps to maintain a potential difference across a conductor.
Any source of electricity, such as a battery or cell, contributes to the maintenance of a potential difference across a conductor. A cell is a device that converts chemical energy into electrical energy. It has two terminals one is positive and the other one is negative. At the same time, a battery is a combination of cells connected in series. Here, one cell's positive terminal is connected to another's negative terminal.

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