A proton,moving in a uniform magnetic field,moves in a circle perpendicular to the field lines and takes time T for each circle.If the proton's speed tripled,what would now be its time to go around each circle?
A)9T
B)3T
C)T
D)T/3
E)T/9

Question

Quizplus · Accepted Answer

The time to go around each circle, or the period of the circular motion, is independent of the speed of the proton when moving perpendicular to the magnetic field lines.

A Proton,moving in a Uniform Magnetic Field,moves in a Circle