Back And Forth It Goes
a: Alternating current ~
b: a locomotive travelling on a single line
What: "Alternating Current is like a locomotive travelling on a single line. It goes forward and backwards along that line in both directions.
A D.C. loco could only travel along the line in one direction and can not return."
Useful?
Writer: A welsh man
LCC: TX
Where:
Date: Sep 30 2013 8:37 PM
#3660 Email metamia about this
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