10. 
    Alternating current
    In alternating current (AC, also ac), the movement of electric charge periodically reverses direction. In direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current...
    Found op http://en.wikipedia.org/wiki/Alternating_current
    
    
11. 
    Alternating Current
    AC - An electrical current that continuously cycles through a series of positive and negative values.
    Found op http://www.thyssenkruppelevator.com/glossary.html
    
    
12. 
    alternating current
    electric current that is a periodic function of time with a zero direct component or, by extension, a negligible direct component NOTE - For the qualifier AC, see IEC 60050-151.
    Found op http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=131-11-24
    
    
13. 
    Alternating Current
    A type of electrical current, the direction of which is reversed at regular intervals or cycles; in the U.S. the standard is 120 reversals or 60 cycles per second; typically abbreviated as AC.
    Found op http://www.electromn.com/glossary/a.htm
    
    
14. 
    alternating current
    An electric current that changes direction periodically. The frequency of alternating current (AC) is measured in hertz. The frequency of the domestic supply is different in different parts of the world (in Europe, it is 50 Hz, in North America, 60 Hz).
    Found op http://www.daviddarling.info/encyclopedia/A/alternating_current.html
    
    
15. 
    alternating current
    Electric current in which the direction of flow is reversed at frequent intervals – usually 100 or 120 times per second (50 or 60 cycles per second or 50/60 Hz). When a solar power system (producing direct current) is used in a grid-connected home or used for traditional home appliances, then ...
    Found op http://www.daviddarling.info/encyclopedia/A/AE_alternating_current.html
    
    
16. 
    Alternating Current
    The standard power supply available from local electric utility companies.
    Found op http://www.electricmotorwarehouse.com/Glossary.htm
    
    
17. 
    alternating current
    alternating current, abbr. AC, a flow of electric charge that undergoes periodic reverses in direction. In North America ordinary household current alternates at a frequency of 60 times per second. See electricity; generator.
    Found op http://www.infoplease.com/ce6/sci/A0803513.html
    
    
18. 
    Alternating Current
    Alternating current is electric current which changes direction rhythmically, rising from zero to a maximum in the positive direction, falling to zero again and then increasing to a maximum in the negative direction before returning again to zero, after which the cycle repeats. The number of cycles ...
    Found op http://www.probertencyclopaedia.com/browse/GA.HTM
    
    
19. 
    alternating current
    (AC) Type: Term Definitions: 1. a current that flows first in one direction then in the other, 60-cycle current.
    Found op http://www.medilexicon.com/medicaldictionary.php?t=21943
    
    
20. 
    alternating current
    Electric current that flows for an interval of time in one direction and then in the opposite direction; that is, a current that flows in alternately reversed directions through or around a circuit. Electric energy is usually generated as alternating current in a power station, and alternating curre...
    Found op http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0015925.html
    
    
21. 
    Alternating Current
    Electricity that changes direction periodically. The period is measured in Cycles per Second (Hertz, Hz).
    Found op http://www.otherpower.com/glossary.html
    
    
22. 
    Alternating-current
    This category organizes all articles on the sports draft of the National Football League. ...
    Found op http://en.wikipedia.org/wiki/Alternating-current
    
    

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