HVAC Electrical

Front

Electrical voltage and current that changes in magnitude and direction in cyclic characteristic; _ electricity in North America cycles 60 times per second

Back

AC

Front

An instrument used to measure current flow through a circuit

Back

Ammeter

Front

a unit of current flow equal to one coulomb of charge moving through a circuit in one second

Back

Ampere

Front

a meter that displays information using a needle over a scale

Back

Analog meter

Front

a positive terminal of an electrical device

Back

anode

Front

the smallest unit of an element, made up of protons, electrons and neutrons,(except hydrogen)

Back

atom

Front

a unit of energy based on the amount of heat required to raise the temperature of one pound of the water degree Fahrenheit

Back

British thermal unit (Btu)

Front

a measure of the energy stored in a capacitor; units of _ are farads

Back

capacitance

Front

A device made with two conductive plates separated by a dielectric used to increase on inductive load efficiency by changing the phase angle and electrostatically stores electrical energy

Back

capacitor

Front

a modification of a split-phase motor that uses a capacitor in series with the start winding; the capacitor causes a phase displacement for starting

Back

capacitor-start motor