Which is the hot side of a polarized plug?

The wide prong on the plug links the threaded base of light bulbs to the neutral terminal (the wider slot) in the receptacle. If the wires are reversed, the hot side of the outlet (the side that can deliver a shock) is wired to the threaded socket.

Which wire goes on the gold screw?

The black (hot) and white (neutral) wires carry the current, and the copper wire is the ground. Note that the outlet's screw terminals are certain colors. The white wire goes on the silver screw. The bare copper or green wire goes on the green screw.
  • What is the purpose of a three way switch?

    Toggling the switch disconnects one "traveler" terminal and connects the other. Electrically, a typical "3-way" switch is a single pole, double throw (SPDT) switch. By correctly connecting two of these switches together, toggling either switch changes the state of the load from off to on, or vice versa.
  • What is meant by common wire?

    The common wire in an industrial electrical circuit is the neutral wire or ground wire. Find out more about the common wire in an industrial electrical circuit with help from an electrical contractor with over 25 years of experience in the electrical industry in this free video clip.
  • What is the purpose of a switch leg?

    Screwdrivers. If you want to install a light fixture or switched outlet, you will need to know how to properly wire a 2 conductor switched leg. The switched leg of a switch simply refers to the wire that is supplied electricity when the switch is turned on.

Updated: 26th November 2019

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