The force experienced by a charged particle moving in space where electric and magnetic field exists is called Lorentz force.

When a charged particle carrying charge is subiected to an electric field of strength , it experiences a force given by whose direction is same as or opposite of depending on the nature of charge, positive or negative.

If a charged particle is moving in a magnetic field of strength with a velocity it experiences a force given by . The direction of this force is in the direction of

i.e., perpendicular to the plane containing and is directed as given by right hand screw rule. Due to both the electric and magnetic fields, the total force experienced by the charge is given by