a flow of electricity which reaches maximum in one direction, decreases to zero, then reverses itself and reaches maximum in the opposite direction. The cycle is repeated continuously. The numbe [..]

a generator that produces alternating electric current.

an instrument that measures electric current.

or amp; A unit that measures the strength/rate of flow of electrical current.

is the amount of energy charge in a battery that will allow one ampere of current to flow for one hour.

Ballast

a device that produces electric current as a result of chemical reaction.

separate, metallic strips that extend through the service panel. Breakers slide onto the "hot" busses. Neutral and ground wires screw down in their respective busses.

Capacitor (condenser)

the most common type of "over current protection." A breaker trips when a circuit becomes overloaded or shorts out.