My understanding of how AC current works is that the current changes direction, so essentially the charges are oscillating back and forth along the direction of the cable. Then since accelerating charges radiate, this produces an EM wave which is what carries the energy. But my problem is, from my understanding of how and why accelerating charges radiate, they do not produce a transverse EM wave along the direction they are oscillating. So how is it that the charge oscillates in the same direction that the energy flows during the propogation of an AC signal? I apologize if my thinking is simplistic on this. I am not an expert in either electronics or Maxwell's equations.