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What Is the Difference between Alternating and Direct Current?

Answer

The difference between alternating current (AC) and direct current (DC) is that in direct current (DC), the electrons travel in one direction while in alternating current (AC), the electrons travel in alternate directions. Alternating current (AC) is used to transport electricity over long distances due to minimal loss. Direct current (DC) was discovered before alternating current.
Q&A Related to "What Is the Difference between Alternating and..."
ac comes directly from the power socket, and DC is battery source. Answer2: The frequency is the difference, AC has frequency f>0 and DC does not f=0.
http://wiki.answers.com/Q/What_is_the_difference_b...
Alternating current reverses periodically, unlike direct
http://www.chacha.com/question/what-is-the-differe...
direct current flows in one direction in a circuit. For example, a battery has a negative and positive terminal and current always flows from the positive to the negative. Electrons
http://answers.yahoo.com/question/index?qid=200707...
The distinguishing factor between a tide and a current is the direction of movement. A tide moves up and down, rather than side to side. Tides are caused by the position of the sun
http://www.ehow.com/facts_7244213_difference-betwe...
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