Equipotential surface

Equipotential surface and Relation between electrostatic field and potential

In this topic we will discuss about  Equipotential surface and relation between electrostatic field and potential also,  we will know about equipotential surface for different-different conditions  .

 Equipotential surface- It is the surface inside the electrostatic field, the electric potential at every point on that surface are same. For any charge configuration, equipotential surface through a point is normal to the electric field at that point.

Equipotential surfaces of a single point charge are concentric spherical surfaces centred at the charge .

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Properties of equi-potential surfaces –

(i) No work is done in moving a test charge from one point to another point on the equi-potential surface .

(ii) Electric field is always normal to the equi-potential surface .

(iii) No two equi-potential surface can intersect each other .

(iv) Equi-potential surfaces is closer in the region of strong electric field and they are farther apart in the region of weak electric field .

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