question_answer

Under the influence of a uniform magnetic field a charged particle is moving in a circle of radius R with constant speed v The time period of the motion

A) depends on both R and v

B) is independent of both R and v

C) depends on R and not on v

D) depends on v and not on R

Correct Answer: B

Solution :

[b] When a test charge \[{{q}_{0}}\]enters a magnetic field B directed along z-axis, with a velocity v making angles d with the z-axis. The time   period of the motion is independent of R and v.