An alpha-particle and a proton are moving in the plane of the paper in a region where there is a uniform magnetic field vecB directed normal to the plane of the paper. If the two particles have equal linear momenta, what will be the ratio of their trajectories in the field?

A particle with charge q moving with a velocity v in the plane of the paper enters a uniform magnetc field B, acting perpendicular to the plane of the paper. Deduce an expression for the tie period of the charge, as it moves in a circular path in the field. Why does the kinetic energy of the charge not change, while moving in the magnetic field?

What will be the path of a charged particle moving along the direction of a uniform magnetic field?

What will be the path of a charged particle moving perpendicular to a uniform magnetic field ?

An electron beam of velocity v moving in the plane of paper enters a region of uniform magnetic field, which is perpendicular to the plane of the paper and traels in a circular path.Does the kinetic energy of electron change during this time? Give reason.

A beam of alpha - particles and of protons, of the same velocity v, enters a uniform magnetic field at right angles to the field lines. The aprticles describe

A charge q moves in a region, where electric field vecE and magnetic field vecB both exist, then the force on it is

An irregular shaped wire PQRS shown in the figure. placed in a uniform magnetic field perpendicular to the plane of the paper changes into a circular shape. Show with reason the direction of the induced current in the loop.

A charged particle moves with velocity vecv in a uniform magnetic field vecB . The magnetic force experienced by the particle is