I know that it's the accelerating electrons in an AC current that are the cause of far field effects. But, what about the reactive near field close to a wire that has a 60Hz AC current? What is the cause of the time-varying electric and magnetic fields around that wire? Is the cause of the (AC) magnetic near-field due to the flow of electrons within the wire? And is the (AC) electric near-field due to the charges of the electrons flowing within the wire? If it's the charges of electrons flowing in the wire that cause the time-varying electric near-field, then how is that possible since the wire would actually be considered electrically neutral (filled with uncharged charge), leading to a 0 field?