Question

What do you mean by electric potential at a point?

Answer 1

1. The electric potential at a point in an electric field is defined as the amount of work done in moving a unit positive charge from infinity to that point along any path when the electrostatic forces are applied. Suppose that a positive charge is placed at a point.
2. The charge placed at that point will exert a force due to the presence of an electric field.
3. The electric potential at any point at a distance $r$ from the positive charge and q is the charge,

$V=\frac{1}{4\pi {\epsilon }_0}\frac{q}{r}$