Question

For any charge configuration, equipotential surface through a point is _____to the electric field at that point.

• A. Parallel
• B. Perpendicular
• C. At 45°
• D. Anti-parallel.

Answer 1

The correct option is B

Perpendicular

Equipotential surface is always perpendicular to the electric field

because work done is moving a charge along an equipotential surface is zero.

This is possible only if the electric field is perpendicular to the equipotential surface.