Equipotential Surfaces
Equipotential Surfaces
An equipotential surface is one where the potential is same at every point on the surface . For a single charge ,
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Since r is constant , the equipotential surfaces are concentric spherical surfaces centred at the charge .
Electric field lines are radial starting from or ending at the charge for positive and negative charges respectively .
For any charge configuration , equipotential surface through a point is normal to the electric field at that point .