Motion Properties of Charged Particles in Uniform Electromagnetic Field

The action of charged particle is studied in different electromagnetic circumstance.When charged particle acts in uniform pure electric field or magnetic field,its orbit is a parabola or a spiral line.When charged particles are subjected to an interaction of electromagnetic field(the initial velocity of charged particle and the electric field and the magnetic field is perpendicular each other mutually or the magnetic field is perpendicular to the plane that initial velocity of charged particle and the electric fields are constitute in,and the initial velocity becomes with electric field arbitrarily angle),move equation of the charged particles has been obtained.