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RE: "How electricity flows in an AC circuit"

Every time you change an electric field, you create a magnetic field. This is called the Maxwell-Ampere Law. We are not considering accelerating charges here. We are not considering stationary charges either. There are both E and B fields involved in this audio cable example. The E and B fields are perpendicular to the wire axis and perpendicular to each other.the Poynting vector is the cross product of E and B and represents the energy flux density. The E and B fields set up along the axis of the conductor and alternate E, B, E, B, etc.

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