In a velocity selector, E = 5000 V/m and B = 0.02 T are at right angles. The speed of particles that pass through undeflected is:

  1. 1.25 10^5 m/s
  2. 5 10^5 m/s
  3. 100 m/s
  4. 2.5 10^5 m/s
Answer

D) 2.5 10^5 m/s

qE = Bqv Rightarrow v = EB = 2.5 10^5 m/s. SLO P-09-E-34 · Understanding

Physics MCQ · More Magnetism and Electromagnetic Induction MCQs · Practise