# Force on a moving charge due to its own field

• I
consider a frame S with a given electric and magnetic fields , and a single point charge. if we want to calculate the force on the charge in his rest frame we should use Lorentz transformation to find the electric field in his rest frame. if we believe that a given field is not related to his sources, shouldn't we include the field of the point charge in the Lorentz transformation? (and if we do so , we get a division by 0).

Meir Achuz