Write the expression for the force acting on a charged particle of charge q moving with velocity in the presence of magnetic field . Show that in the presence of this force. [3] i. The kinetic energy of the particle does not change. ii. Its instantaneous power is zero.

Question

Write the expression for the force acting on a charged particle of charge q moving with velocity in the presence of magnetic field . Show that in the presence of this force. i. The kinetic energy of the particle does not change. ii. Its instantaneous power is zero.