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Question: Answered & Verified by Expert
A particle of mass $\mathrm{m}$, charge $\mathrm{Q}$ and kinetic energy $\mathrm{T}$ enters a transverse uniform magnetic field of induction $\vec{B}$. After 3 seconds the kinetic energy of the particle will be
PhysicsMagnetic Effects of CurrentNEETNEET 2008 (Mains)
Options:
  • A $4 \mathrm{~T}$
  • B $3 \mathrm{~T}$
  • C $2 \mathrm{~T}$
  • D $\mathrm{T}$
Solution:
2278 Upvotes Verified Answer
The correct answer is: $\mathrm{T}$
Work done by magnetic field on charge particle is zero. Therefore its kinetic energy will be same i.e. $\mathrm{T}$

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