Question

define and state the formula unit of electric potential difference ​

Answer 1

The electric potential—that is, the work W done in moving the positive charge through a distance d—is W = F′d = −qEd. ... If an electric field is defined as the force per unit charge, then by analogy an electric potential can be thought of as the potential energy per unit charge.

Answer 2

Electric potential difference ​

The electrical potential difference is defined as the amount of work done to carrying a unit charge from one point to another in an electric field. In other words, the potential difference is defined as the difference in the electric potential of the two charged bodies.

Unit:

The unit of potential difference is volt.

Formula:

V = IR

V = voltage

I = current

R = resistance