Question

Derive an expression for potential due to an electric dipole at a point (r, q). what will be the expression for the potential for special cases, when the point lies— (a) on the axial line but on the side of positive charge

Answer 1

v=ir

v^2=i^2+r is main expression use to show special two case of two positive classes

Answer 2

Hello mate here is your answer.
Hope it helps you mate.