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What is the difference between direct current and alternating current?
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What is the difference between direct current and alternating current?

User Ecabuk
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Direct currents flow in one direction, while in alternating currents the flow could change/alternate.
User Tobias Ritzau
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In a direct current, the electric charge, or current, only flows in one direction. In an alternating current, the electric charge changes periodically.  
User Ethem Kuloglu
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