|The Open Door Web Site|
Electricity and Magnetism
The Motion of Charged Particles in Magnetic Fields
A charged particle moving parallel to the flux lines does not experience a force.
A charged particle moving so as to cross magnetic flux lines experiences a force which acts at 90° to both the flux and the direction of motion.
The magnitude of the force is given by F = qvB sin (where is the angle between the field and the direction of motion).
There are three possible paths followed by a charged particle moving through a uniform magnetic field: