Physics
Physics
Problem
Which of the following statements about electrical equipotentials is incorrect? a. A charged particle experiences the same force anywhere on an equipotential. b. An equipotential is always perpendicular to a field line. c. No work is done against the field when a charged particle moves along an equipotential. d. A charged particle possesses the same amount of energy anywhere on an equipotential.Intuitive explanation
Equipotential surfaces are regions where every point has the same electric potential—think of them as the "contour lines" of voltage in space. The key insight is that equipotentials are always perpendicular to electric field lines, and no work is done moving a charge along an equipotential. To spot the incorrect statement, look for one that violates these core properties: claims equipotentials are parallel to field lines, suggests work is done moving along them, or misrepresents their geometry around charges or conductors.
Intuitive explanation
Equipotential surfaces are regions where every point has the same electric potential—think of them as the "contour lines" of voltage in space. The key insight is that equipotentials are always perpendicular to electric field lines, and no work is done moving a charge along an equipotential. To spot the incorrect statement, look for one that violates these core properties: claims equipotentials are parallel to field lines, suggests work is done moving along them, or misrepresents their geometry around charges or conductors.