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An electron moving with uniform velocities in x-direction enters a region of uniform magnetic field along y direction. Which of the folloeing physical quantities are non-zero and remain constant?
  1. Velocity of electron
  2. its magnitude and momentum
  3. force on it
  4. its kinetic energy
P.S (Multiple answers are acceptible)

Lakshmi Warrier , 8 Years ago
Grade 11
anser 1 Answers
Arun
Velocity and force change due to change in direction
but magnitude of PE and KE of electron remains constant.
Speed is constant.
Hence option 2 and 3 are correct
Last Activity: 8 Years ago
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