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.ill Sprint 9:15 PM a session.masteringphysics.com Item 6 MasteringPhysics onsta

ID: 1572709 • Letter: #

Question

.ill Sprint 9:15 PM a session.masteringphysics.com Item 6 MasteringPhysics onstants Part A Which of the following statements are true? Check all that apply. Electric field lines and equipotential surfaces are always mutually perpendicular The potential energy of a test charge decreases as it moves along an equipotential surface When all charges are at rest, the surface of a conductor is always an equipotential surface The potential energy of a test charge increases as it moves along an equipotential surface

Explanation / Answer

Electric field lines and equipotential surfaces are always mutually perpendicular to each other -  Correct statement.

When all charges are at rest, the surface of a conductor is always an equipotential surface. - Correct statement

On equipotential surface , potential energy is constant (same) on every point of the surface, so, its change will be zero. Thus, on equipotential surface, electric potential energy neither increases nor decreases when particle moves

along the surface of equipotential but it would be same. So, second and fourth options are incorrect.