Question

Define potential difference. Name the device which is used to
maintain potential difference.
​

Answer 1

Hi dude✌

A battery consisting of one or more electric cells is used to maintain a potential difference across a conductor........

Answer 2

Answer:

***the difference in potential between two points that represents the work involved or the energy released in the transfer of a unit quantity of electricity from one point to the other.

***A voltmeter is an instrument used for measuring electrical potential difference between two points in an electric circuit