I was replacing a piece of drywall in my bathroom and saw that nail had taken a chunk off of the sheething that covers the wire going to my outlet. The sliced section is about the size of a nail head and it's still on the wire. Could i just flap it back over and wrap it in electrical tape?? thanks
You could as long as the nail didn't damage the inner conductors, but I'd much rather see you pull up a little more slack, cut the wire (with the power of of course) and put in a junction box. You'd only need maybe 3-4" of slack from the top or bottom...cover with a blank cover made (or painted) to match your wall.