POWER Supplies
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Created by:
olliedumas on March 3, 2010
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Key Words and Terms from Chapter 5.
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18 terms
Terms | Definitions |
|---|---|
 Alternating current | Electrical current that reverses direction cyclically. |
| ampere | A scale used in measuring the volume of electron flow in a circuit |
| backfeed | A type of ohmmeter reading in which the resistance is measured through the circuit components even though the circuit is open. |
| continuity | A state of connectedness. In electronics, an unbroken circuit is said to have continuity. |
| current | the elctron flow in a circuit |
| cycle | The completed sequence of flow, first in one direction and then in the other. |
| dedicated circuit | A circuit installed in an electrical power distribution system that is designed to serve only computer equipment. |
| direct current | Electrical current that flows in one direction. |
| fuse | An inexpensive passive component that is engineered to burn open at a predetermined amperage protecting the rest of the circuit from overload. |
| power | The amount of electrical energy provided or used by equipment |
| power good signal | A signal sent from the power supply to the mother board to verify that it is functioning normally. |
| resistance | The opposition to the flow of electrical energy. |
| standby power connection | Provides power to reactivate or wake up a system in standby mode. |
| uninterruptible power supply | A power supply that ensures a constant supply of quality electrical power to the computer |
| volt | A scale used in measuring electrical pressure (electromotive force). |
| voltage | The amount of electrical pressure present in a circuit or power source |
| volt-amperes | An alternative scale for measuring electrical power. |
| watts | A scale used in measuring electrical power. |
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