Electric power
From Simple English Wikipedia, the free encyclopedia

Electrical power is distributed via cables and electricity pylons like this near Bartholomä in Germany
Electric power is defined as the amount of work done by an electric current, or the rate at which electrical energy is transmitted. The SI unit of power is the watt.
When electric current flows in a circuit with resistance, it does work. Devices convert this work into many useful forms, such as heat (electric heaters), light (light bulbs), motion (electric motors) and sound (loudspeaker).
[edit] References
- Reports on August 2003 Blackout, North American Electric Reliability Council website
- Croft, Terrell; Summers, Wilford I. (1987). American Electricans' Handbook, Eleventh Edition, New York: McGraw Hill. ISBN 0-07-013932-6.
- Fink, Donald G.; Beaty, H. Wayne (1978). Standard Handbook for Electrical Engineers, Eleventh Edition, New York: McGraw Hill. ISBN 0-07-020974-X.