Question

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

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Updated on : 2022-09-05
Solution
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Potential difference is the difference of electrical potential between two points which is defined as the amount of work energy is required to move an electric charge from one point to another.

An electric cell or battery helps to maintain a potential difference across a conductor.

The cells only provide the energy required to work on the charge in order to transport it from the negative to the 

positive terminal. 

The cell can sustain an electric potential difference across the two ends of the external circuit by giving energy to the 

charge.


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