Give the physical meaning of electrostatic potential?

What is the unit and dimenstions of electrostatic potential?

What is the physical meaning of electric flux?

Give the dependence of electrostatic potential due to a small electric dipole at a far off point lying on the equitorial line.

Give the dependence of electrostatic potential due to a small electric dipole at a far off point lying on the axial line

SI unit of electrostatic potential enegy is………….

What is the physical meaning of zero vector?