Question

define electric potential. derive an expression for the electric potential at a distance r from a charge q ​

Answer 1

Answer:

The ‘electric potential’ due to a point charge is kq/r.

Solution:

Let us consider q’ be the point charge placed at a distance r from the charge q.

By coulomb law, the force exerted on the point charge due to the positive charge q is

The electric potential is defined as the work done to bring a point charge to a particular position.

The work done can be determined by

Thus the ‘electric potential’ will be

The electric potential for a point charge is kq/r.

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