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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? Velocity of electron its magnitude and momentum force on it its kinetic energy P.S ( Multiple answers are acceptible)

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)

Grade:11

1 Answers

Arun
25757 Points
6 years ago
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

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