An electron moves at 1 10^7 m/s perpendicular to a 0.01 T field. The radius of its circular path is (m = 9.11 10^-31 kg, q = 1.6 10^-19 C):

  1. 0.0114 m
  2. 5.69 10^-4 m
  3. 0.0569 m
  4. 0.00569 m
Answer

D) 0.00569 m

Bqv = mv^2r Rightarrow r = mvBq = 0.00569 m. SLO P-09-E-33 · Understanding

Physics MCQ · More Magnetism and Electromagnetic Induction MCQs · Practise