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Expert
178 Answers
- Posted on Sep 12, 2009
Re: diffrence bwetween ac in volts and dc
DC is direct current and AC is alternating current.
eg; 12 volts DC stays 12 volts constantly, positive or negative.
12 volts AC (at 60 Hertz or cycles per second) alternates from positive to negative then back to positive voltage again 60 times per second.
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