A proton (charge 1.6 10^-19 C) moves at 3 10^5 m/s at 30^circ to a field of 0.2 T. The magnetic force on it is:

  1. 4.8 10^-15 N
  2. 2.4 10^-15 N
  3. 4.8 10^-14 N
  4. 9.6 10^-15 N
Answer

A) 4.8 10^-15 N

F = Bqvsintheta = 4.8 10^-15 N. SLO P-09-E-32 · Application

Physics MCQ · More Magnetism and Electromagnetic Induction MCQs · Practise