## Alternating Current Terminology

Please contribute to the Glossary. I don't care how silly you definition is. This is just a bit of fun.

Special | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

**ALL**

## C |
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## Capacitive ReactanceOpposition to current flow caused by a capacitor when an AC supply is used. Strangely enough the higher the frequency the lower the capacitive reactance. | ||

## CROA device that throws electrons at the middle of a screen, while magnets make the deviate from their intended destination. | ||

## F |
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## Fundamental FrequencyThe frequency that is supposed to be on the cable. You know. The one without all the other shit. | ||

## H |
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## I |
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## Impedancea property of a circuit component, instrument or some other device which encapsulates the relationship between the potential difference (PD) across the device and the current through it. For steady (constant) PD and current, the impedance is equivalent to the Source: http://www.physics.usyd.edu.au/teach_res/db/elgloss.htm | ||

## ImpedanceCircuit Impedance is a combination of Resistance and Reactance in an AC circuit. All circuits both AC and DC (exc superconductive) contain Resistance (ohms). Only AC circuits contain reactance(ohms). Therefore when dealing with AC circuits to find the full opposition to power we must know the reactance(X) and the resistance(R), the correct mathematical combination gives us the circuit impedance(Z). | |||

## Inductive ReactanceOpposition to current flow caused by a coil when an AC supply is used. | ||

## INSTANTANEOUS value of an alternating voltageThe | |||

## K |
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## kilowatt hournon-SI unit of energy, used by electricity authorities for billing, equal to 3.6 megajoules. The symbol is kW.h, which is sometimes sloppily written as kWh. Source: http://www.physics.usyd.edu.au/teach_res/db/elgloss.htm | ||

## O |
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## Ohm | ||