Analog audio is alternating current, the electrons are pushed and pulled down the cable for each wave of the signal. There is no overall direction, the push-pull is EXACTLY symmetrical so there are EXACTLY as many electrons travelling in one direction as the other averaged over time.
That’s a myth.
The electrons do not carry the signal. The electrons really don’t move back and forth either. They vibrate in place and hardly move at all.
The signal does not travel back and forth in the conductor from the source to the load. It travels down the wire in on direction >>>> from the source to the load in the form of an electromagnetic wave at near the speed of light, in a vacuum.
Speed of electricity - Wikipedia
Laws of Physics
The laws I want to talk about are the basic laws of electricity. I am not referring to circuit theory laws as described by Kirchhoff or Ohm, but to the laws governing the electric and magnetic fields. These fields are fundamental to all electrical activity, whether the phenomenon is lightning, ESD, radar, antennas, sunlight, power generation, analog or digital circuitry. These laws are often called Maxwell’s equations.
Utility power is electromagnetic wave energy where the wavelength is near 10 million meters. Lenses can direct light energy; waveguides can direct radar energy; and copper conductors can direct the energy at power frequencies. Thus, we direct energy flow at different frequencies by using different materials. We have learned how to control where we want the field energy to go.
If we accept the idea that fields carry energy in space, it must be true at all frequencies. That is the law. If it is true for light, it must also be true for 60Hz power and at DC. For utility power, the energy travels in the space between conductors, not in the conductors. This is not the picture presented by circuit diagrams, where energy seems to be carried by conductors. In digital circuits, the signals and energy travel in the spaces between traces or between traces and conducting surfaces.
Buildings have halls and walls. People move in the halls, not the walls. Circuits have traces and spaces. Signals and energy move in the spaces, not in the traces.
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Electricty Misconceptions Spread By K6 Textbooks
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