The magnetic force on a moving charge does no work because:

  1. it is very small
  2. it is always perpendicular to the velocity
  3. the charge stops
  4. the field is uniform
Answer

B) it is always perpendicular to the velocity

Speed (KE) stays constant. SLO P-09-E-32 · Application

Physics MCQ · More Magnetism and Electromagnetic Induction MCQs · Practise