jea48 - You might just as well have said the sky is blue. Those wiki links, as authoritative and scientific as they may be, don’t get us any closer to the answer to the question, why is wire direction audible? Quoting Ohm’s Law or Maxwell’s equations don’t win either side of the argument. Now, if you had stated, e=mc2 then I would more inclined to say that’s relevant.
Pop Quiz - what is the mass of a photon that is not at rest?
Pop Quiz - what is the mass of a photon that is not at rest?