The various conductors, connections, and devices found along the path of electric flow from the source through the components and back to the source.

• Main panel

• GFCI

• Circuit

• Ground wire

An electric safety switch that automatically opens a circuit when excessive amperage occurs.

• Circuit breaker

• GFCI

• Distribution panel

• Single pole switch

A box in which the wires from the meter are connected to individual circuit breakers, which are connected to separate circuits for distribution to various locations throughout the building.

• Three way switch

• Circuit breaker

• GFCI

• Distribution panel

An instrument used to measure electric power.

• Circuit

• Electric meter

• Electric power

• Distribution panel

An electrical connection to the earth.

• Electric power

• Hot

• Neutral

• Ground

An electrical connection used to plug in devices. A duplex outlet, with two outlets, is the typical wall plug.

• Outlet

• Three way switch

• Distribution panel

• Circuit breaker

A unit of measure of power.

• SARMS

• Watt

• Joules

• JJ Watt

Allows switching from one location

• Single pole switch

• Double pole switch

• Three way switch

• Circuits

Allows switching two circuits from one location

• GFCI

• Three way switch

• Single pole switch

• Double pole switch

Allows switching a circuit from two locations

• Double pole switch

• GFCI

• Single pole switch

• Three way switch