Two protons are entering perpendicular to a uniform magnetic field with velocities in the ratio 1:2. What is the ratio of the radius of the circular path they describe in the magnetic field?

The velocities of two alpha particles entering a uniform magnetic field are in the ratio 2:3. What is the ratio of the radii of their circular path.

The path of a charged particle entering parallel to uniform magnetic field will be

A proton enters perpendicular to a magnetic field of 2.5 T with a velocity 1.5 xx 10^(7) ms^(-1) . Find the force on the proton?

An alpha particle and a proton are moving in a region normal to a uniform magnetic field B. If two particles have equal linear momenta, what will be the ratio of the radii of their trajectories in the field?

When a charged particle enters perpendicular to a magnetic field it experiences a force? : Name the force.