Equi potential surface are perpendicular to field line Wohy?
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Equi potential surface are perpendicular to field line Wohy?
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No work is done in moving a charge from one point on equipotential surface to the other. Therefore, component of electric field intensity along the equipotential surface is zero it means, the electric field intensity is perpendicular to equipotential surface. Hence, the surface is perpendicular to field lines.