MCQ
A particle is moving in a uniform magnetic field, then
  • Its momentum changes but total energy remains the same
  • B
    Both momentum and total energy remain the same
  • C
    Both will change
  • D
    Total energy changes but momentum remains the same

Answer

Correct option: A.
Its momentum changes but total energy remains the same
a
(a) The charged particle moving in a magnetic field does not gain energy. However, the direction of its velocity changes continuously. Hence momentum changes.

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