Question

An electron and a proton move in circular orbits in a plane perpendicular to a uniform magnetic field.

Find the ratio of the radii of their circular orbits when the electron and proton have
A. the same momentum
B. the same kinetic energy

Related Questions

An electron and a proton execute uniform circular motion in the presence of a uniform magnetic field... An electron and a proton move in circular orbits in a plane perpendicular to a uniform magnetic fiel...