In a velocity selector, E = 12,000 V/m and B = 0.004 T are at right angles. The speed of particles that pass through undeflected is:

  1. 3 10^6 m/s
  2. 48 m/s
  3. 1.5 10^6 m/s
  4. 6 10^6 m/s
Answer

A) 3 10^6 m/s

qE = Bqv Rightarrow v = EB = 3 10^6 m/s. SLO P-09-E-34 · Understanding

Physics MCQ · More Magnetism and Electromagnetic Induction MCQs · Practise