I needed to replace an electrical wire with a longer one so I could move an electrical outlet. When I went to cut away the outer rubber cover of one of the wires with a utility knife (yes, dumb, I know), I accidentally shaved off a wee little sliver of copper from the wire. Everything works fine, but I am wondering if it's something serious that could affect the transfer of electricity or cause other problems.
It has since been installed, so I don't remember if it was the hot, neutral, or ground at this point. Should I redo it with a different wire? I can't cut off any more of the wire as I didn't allow myself that much slack.