A particle of mass m, charge Q and kinetic enery T enters a transverse

A particle of mass m, charge Q and kinetic enery T enters a transverse uniform magnetic field of induction B⃗. After 3 seconds, the kinetic energy of the particle will be:

Options

(a) 3T
(b) 2T
(c) T
(d) 4T

Correct Answer:

T

Explanation:

When a charged particle enters a transverse magnetic field it traverse a circular path. Its kinetic energy remains constant.

admin:

Related Questions

  1. Lumen is the unit of
  2. The energy of the em waves is of the order of 15 keV. To which part of the spectrum
  3. The angle between the dipole moment and electric field at any point on the equatoria
  4. An electric motor runs on DC source of emf 200 V and draws a current of 10 A.
  5. The dimensional formula for Young’s modulus is