8/28/00 NE 409. Relativistic Dynamics Electromagnetic Fields What happens if the electric ( E ) and Magnetic ( B ) fields are in a moving reference frame?. Charged particle in an electric and magnetic field in S frame. E. B. S. V. q. Lorentz force in S frame. q = ( E + V x B ) = 0.
q = (E + VxB) = 0
The resulting mass change must go into energy according to the mass energy relationship,