An alpha particle (charge 2 1.6 10^-19 C) moves at 1 10^7 m/s at 90^circ to a field of 1.5 T. The magnetic force on it is:

  1. 4.8 10^-12 N
  2. 2.4 10^-12 N
  3. 9.6 10^-12 N
  4. 4.8 10^-11 N
Answer

A) 4.8 10^-12 N

F = Bqvsintheta = 4.8 10^-12 N. SLO P-09-E-32 · Application

Physics MCQ · More Magnetism and Electromagnetic Induction MCQs · Practise