Charge moving with uniform velocity produce an Electromagnetic field. A moving charged particle produces a magnetic field. This magnetic field exerts a force on other moving charges. The magnitude of the magnetic field is different for different objects.
A force will also act on it. The magnetic force depends on
- the charge of the particle
- the velocity of the particle and the magnetic field in which it is placed.
- The direction of the magnetic force is opposite to that of a positive charge.
The magnitude of the force is determined by the cross product of velocity and the magnetic field. The resultant force is hence perpendicular to the direction of the velocity and the magnetic field, the direction of the magnetic field is predicted by the right-hand thumb rule.
F = qvB
q is charged particle
v is the speed of the particle
B is the magnetic field.