When an electron beam is moving in a magnetic field, then the work done is equal to the -

when an electron moves through a magnetic field , its speed will

When an electronl beam passes through and electric field they gain kinetic energy. If the same electron beam passes through a magnetic field then their

A proton beam is moving along the direction of a magnetic field. What force acts on the proton beam ?

An electron is moving in electron field and magnetic field it will gain energy from