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Physics 12 Online
OpenStudy (anonymous):

can someone please give me the answer i'll give a medal. One form of electric current is called alternating current. Which best describes alternating current? A. Happening or existing now: belonging to or existing in the present time B. Happening or existing in the future: ever changing C. The overall electric charge moves in one direction as it moves down a wire. D. The overall electric charge in a wire moves back and forth over time.

OpenStudy (anonymous):

Anyone knows the answer?

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