A particle of mass $\mathrm{m}$, charge $\mathrm{Q}$ and kinetic energy $\mathrm{T}$ enters a transverse…
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
$4 \mathrm{~T}$
$3 \mathrm{~T}$
$2 \mathrm{~T}$
$\mathrm{T}$
Solution
Work done by magnetic field on charge particle is zero. Therefore its kinetic energy will be same i.e. $\mathrm{T}$
