what is the angle between electric field and equipotential surface ?

What is angle between electric field and equipotential surface?

Electric Flux And Equipotential Surface

Establish the relation between electric field and electric potential at a point. Draw the equipotential surface for an electric field pointing in +Z direction with its magnitude increasing at constant rate along -Z direction

The angle between the electric lines of force and an equipotential surface is

Relation between field and potential|| Equipotential surface

Define an equipotential surface. Draw equipotential surfaces : (i) in the case of single point charge and (ii) in a constant electric field in Z -direction. Why the equpotential surfaces about a single charge are not equidistant ? (iii) Can electric field exist tangential to an equipotential surface ? Given reason.