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MHT CET202611 April 2026Morning ShiftPhysicsElectrostaticsActual

Which of the following statements is NOT TRUE? a. Work done to move a charge on an equipotential surface is not zero. b. Equipotential surfaces are the surfaces where the potential is constant. c. Equipotential surfaces for a uniform electric field are parallel and equidistant from each other. d. Electric field is always perpendicular to an equipotential surface.

Options

  1. Ac
  2. Ba
  3. Cd
  4. Db

Correct answer

B. a

Step-by-step solution

The work done in moving a charge q from point A to point B is given by W = q(V_B - V_A) . For an equipotential surface, the potential is constant everywhere, which means V_A = V_B . Substituting this into the work equation gives W = q(0) = 0 . Statement a claims that the work done to move a charge on an equipotential surface is not zero, which is incorrect. Statements b, c, and d describe standard properties of equipotential surfaces and electric fields, and are all true. Answer: a

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