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ARE - BS - Electric
Electrical Systems
Term | Definition |
---|---|
DC (Direct Current) | Flows in one direction, from positive to negative poles of a power source; used typically in low-voltage applications |
Alternating Current [AC] | Reverses direction of its flow at regular intervals: typical for most electrical applications |
Voltage | Measure of electromotive force between two wires on a circuit |
Wattage | Power of an electrical load |
Current or Amperage | The number of electrons flowing through a given point on a conductor |
Resistance | Measure of a conductor's ability to conduct electricity |
Transformer | A device used to increase or decrease AC voltage |
Step-Up Transformer | Increase the output voltage |
Step-Down Transformer | Decrease the output voltage |