An electric potential difference is the amount of work that must be done in an electric field to transfer one unit of charge. The movement of electric charge from one end of the battery to the other is what causes the movement of electric charge.
Electrical potential difference is defined as the amount of work done in an electrical field to shift a unit charge from one place to another. This amount of work is performed to move a unit charge from one area to another.
In simpler words, the difference in electric potential that exists between two charged substances is referred to as the potential difference.
Current usually flows from positive terminals to negative terminals, which indicates the transfer of positive charges in that direction.
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