Question

v) A charged particle is in motion having
initial velocity v when it enter into
a region of uniform magnetic field
perpendicular to v. Because of the
magnetic force the kinetic energy of the
particle will
(A) remain uncharged.
(B) get reduced
(C) increase.
(D) be reduced to zero.​

Answer 1

Answer:

d) is correct

Explanation:

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Answer 2

Answer:

(A)Remain unchanged

Explanation:

The magnetic force act perpendicular to the velocity of particle. these cause circular motion. In the magnetic field speed and kinetic energy of the particle remains constant, but the direction is altered at each instant by the perpendicular magnetic force.

hence, the kinetic energy remains constant.