JEE Physics · Easy

Electrostatics: Equipotential Surfaces MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Equipotential SurfacesEasyQuestion 31444

Question

Equipotential surfaces are:
  1. A
    Parallel to electric field lines
  2. B
    Perpendicular to electric field lines
    Correct
  3. C
    Identical to field lines
  4. D
    Always spherical

Correct answer

Perpendicular to electric field lines

Explanation

No work is done moving a charge along an equipotential surface (ΔV = 0). Since W = F·d, E must be perpendicular to the surface.