Jartsa: The two charges are moving together.
Ibix: I'll have to chew on your first answer some more. As far as your second answer, I think you are also confirming what I said, the y direction gets strength by a factor of gamma
pervect: Your first answer is basically confirming what I was...
I have been learning SR from various sources. Most of the time from Feyman's Lectures but that's not the only place.
In II_26 he gives the transformation for the E-field of a moving charge in the x direction under a standard Lorentz configuration. In Eqn 26.11 he derives a formula for the Ex...