Question

A charged particle with charge q is moving with speed v in a uniform magnetic field. A second identical charged particle is moving with speed 2v perpendiculuar to the same magnetic field. The time to complete one full circular revolution for the first particle T1. The time to complete one full circular revolution for the particle moving with speed 2v
is T1/4 b. T1/2 c. T1 4. 2T1 e.4T1

Answer 1

F=qvB
mv²/R=qvB
R=mv/qB

T=2πR/v=2π mv/qBv=
=2π m/qB
T1=T2 (T doesn’t depend on v)

Answer 2

Hi Elena, I got that too, hope it's the right answer