Give the physical meaning of electrostatic potential?

Explanation

Physical significance of electric potential : Electric potential measures the degree of electrification of a body. It also determines the direction of flow of charge when the two conductors are either kept in contact or they are joined by a metallic wire.
Electric potential due to an isolated point charge :
See Long Answer Type Question No. 1
S.I. unit of electric potential is volt (V).
1 Volt : Electric potential at a point is said to be 1 volt if 1 Joule of work is done in moving I Coulomb of charge from infinity to that point.