basic electricity chap. 3

Horsepower

A common meausure of power in which the base is established at 550 foot pounds per second; in electrical quantities, 746 watts equal one horsepower

Volt

A measure of EMF often described as electrical pressure

Amp

A measure of electric current difined as one coulomb per second

Joules

A metric measure of power similar to the english measure watt

Watt

A power measurement that describes the amount of electrical energy converted to some other form

Coulomb

A quantity measure of electrons that equals 6.25x10 to 18 power electron

Ohm's Law

A set of mathematical formulas developed by the German scientist Georg S. Ohm

Complete path

An electric circuit that exists from the more negative to the more positive voltage

Conventional current flow theory

An older theory stating that electric current flows from the more positive source to the more negative source

Grounding conductor

Generally the bare or green wire used to establish a low resistance path to ground

Power

The ability to do work; in an electric circuit, it is generally measured in watts

Bristish thermal unit (BTU)

The amount of heat necessary to change the temperature of one pound of water one degree Fahrenheit

Resistance

The element of an electric circuit that can limit the flow of current by producing heat

Electromotive force (EMF)

The force known as voltage that pushes the electrons through an electric circuit

Neutral conductor

The part of an electric circuit that is generally grounded

Electron Theory

The theory stating that electricity flows from more negative power souce to more positve power source

Impedance

The total current limiting effect in an electric circuit; impedance is measured in ohms.

Ohm

The unit of measure used to describe the resistance to flow of electric current