Have you ever wondered why most cable conductors are made of copper and not another conductive material, like silver, gold or aluminum? And what's up with gold-plated plugs? Discover the answers here.
Why is copper a good conductor of electricity? - Quora
Is there a reason why wires are solid copper or strands of copper? Does it make any difference in terms of transferring electricity or being solid or strands have its own purposes?
What Are Cables Made Of?
Is Aluminum Electrical Cable an OK Substitute for Copper? - Fine Homebuilding
What is tinned copper wire?
Wires and Cables
Copper Service Entrance (SER) Cable
Mineral-insulated copper-clad cable - Wikipedia
Why is cable shielding necessary?