When wiring a lamp socket, the brass screw is for the hot wire. The silver or black (anything but brass) is for the neutral ...

First on the electrical wire color code is black. “Black wires are most used as ‘hot’ wires in residential systems,” says ...

A friend who was buying an older house was concerned about electrical safety and asked for my opinion as an electrical engineer. All of the AC receptacles (also called outlets) in the house were the ...