Question

A particle of mass m, charge $q$ and kinetic energy $t$ enters a transverse uniform magnetic field of induction B. After 3 s, the kinetic energy of the particle will be

• A. $3T$
• B. $2T$
• C. $T$
• D. $4T$

Answer 1

The correct option is C $T$

after passing through a magnetic field, the magnitude of its mass and velocity of the particle remains same, so its energy does not change that is kinetic energy will remain T.

Hence (C) is correct answer