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Question: Answered & Verified by Expert
A particle mass $m$, charge $Q$ and kinetic energy $T$ enters a transverse uniform magnetic field of induction $\overrightarrow{\mathbf{B}}$. After 3 s the kinetic energy of the particle will be
PhysicsMagnetic Effects of CurrentNEETNEET 2008 (Screening)
Options:
  • A $3 T$
  • B $2 T$
  • C $T$
  • D $4 T$
Solution:
1890 Upvotes Verified Answer
The correct answer is: $T$
After passing through a magnetic field, the magnitude of its mass and velocity of the particle remain same, so its energy does not change, ie., kinetic energy will remain $T$.

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