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Engineering
Chapter 11 Electrical Engineering
| Term | Definition |
|---|---|
| alternating current (ac) | current flow where polarity is constantly changing |
| ammeter | meter that is used to measure current |
| battery | electrical connection of two or more cells |
| cell | the smallest structural and functional unit of an organism |
| compact fluorescent lamp | lamp that works on the same principle as a fluorescent lamp but is designed to fit into a normal light socket |
| continuity tester | tool used to test if there is a complete path between two points |
| current | measure of electrons per unit time |
| direct current | current flow in one direction, where polarity never changes |
| electricity | movement of electrons |
| electron | negatively charged subatomic particle |
| gas discharge lamp | lamp that creates light when gas inside of a globe is ionized and glows |
| hybrid car | a car with a gasoline engine and an electric motor, each of which can propel it |
| institute of electrical and electronics engineers | a global association and organization of professionals working toward the development |
| integrated circuit | an electronic circuit formed on a small piece of semiconducting material |
| law of conservation of energy | states that the total energy of an isolated system remains constant |
| motor | device that uses magnetism to change electrical energy to mechanical energy |
| ohm | base unit of measurement of resistance |
| ohm's law | law that defines the relationship between voltage, current, and resistance |
| parallel circuits | circuits that have more than one load and multiple paths for current flow |
| power | he capacity or ability to direct or influence the behavior of others or the course of events |
| proton | subatomic particle with a positive charge |
| resistor | electrical component used to limit current flow and divide voltage |
| schematic symbol | simple symbols used to represent electrical parts |
| semiconductor | material with conductive capabilities between that of conductors and insulators |
| series circuit | circuits with only one path for current to flow from the power source through the circuit and back to the power source |
| solar cell | cell that uses light to produce electricity |
| static electricity | excess of charge on the surface of an object |
| transitor | device used as a solid state switch or amplifier |
| valence shell | atom's outer ring of electrons |
| volt | base unit of voltage |
| voltmeter | meter that is used to measure voltage |
| watt | unit of electrical power |
| zener diode | diode that can conduct in reverse bias and is commonly used in voltage regulation |
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