Two electrons are moving in a uniform magnetic field. The velocity of the first electron is twice the velocity of the second electron. The electron that has the longer period of motion around the cyclotron is
A) the first electron.
B) the second electron.
C) Both trajectories have the same period.
D) The paths of these electrons are not circular.

Question

Quizplus · Accepted Answer

The period of motion for an electron in a magnetic field is independent of its velocity. It is determined by the mass of the electron and the strength of the magnetic field, both of which are constants in this scenario. Therefore, both electrons will have the same period of motion.

Two Electrons Are Moving in a Uniform Magnetic Field