Question

State / Define an equipotential surface. Draw equipotential surfaces.



iii) Can electric field exist tangential to an equipotential surface? Give reason​

Answer 1

Answer:

the answer if the first question is :

Equipotential surface is a surface which has equal potential at every Point on it. (i) Equipotential surfaces due to single point charge are concentric sphere having charge at the centre.

(ii) In constant electric field along z-direction, the perpendicular distance between equipotential surfaces remains same.

the diagram you can easily find from google.

the answer of the second part is :

equipotential surface because if the field lines are tangential, work will be done in moving a charge on the surface, which is against the theory of equipotential surface.

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Answer 2

An equipotential surface is the surface which has same potential at its every point. (i) (ii) The electric field due to single charge is not constant, this is the reason why the equipotential surfaces about a single charge are not equidiatant.