The Physics of Electricity

This must be "loaded" question since I cannot imagine that you haven't checked "Cable Theory" at one of most popular makers - like this one on Audioquest site:

http://www.audioquest.com/pdfs/aq_cable_theory.pdf

Llanger - I'm afraid you won't find an answer here. It was asked many time before and every time cable nay-sayers jump in while audiophiles who actually own and enjoy better quality cables are wise enough to stay away.

"is this when "quality" electrons make a difference??"

That's right. As we know electrons only shake in place at AC when electric charge moves. Young electrons shake eagerly while old stale ones don't want to shake. All is in the electrons! Wanna buy some?

Snofu3 - It is not a need to answer every question, on my part as well, but rather irritation that OP asked a question that was beaten to a pulp on this forum. Any attempt to search in archives would reveal it. Yes, it is trollish question.

"After quite a bit of listening I concluded that the exotic wire sounded very slightly better than the "junk" zip cord."

"we've secretly replaced the fine coffee they usually serve with Folgers Crystals"

Thank you very much. I will still go for fine coffee.

@williewonka  These PS Audio articles are good primer except for possible errors like this:

The electromagnetic field is strongest nearest the wire, decreasing with the square of the distance moving out away from the wire.

It is not the square of the distance but just distance (linear fashion).

Magnetic field of wire carrying current  B = I x u0 / (2 x pi x r)
where I is magnitude of the current in the wire and u0 is permeability of free space.  Inverse square law applies to single point magnetic field and not to long wire carrying current.

@viridian, Part of my complicated Polish last name would correspond to "Frogman".  Kijanki means "tadpoles"  (makes me feel younger :) ).