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How can you reverse ac and dc polarity?

Answer:

DC change the leads source. AC has no polarity since is both positive and negative at some time

First answer by LIBURNO. Last edit by LIBURNO. Contributor trust: 141 Question popularity: 1 [recommend question].

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How can you reverse the AC and DC polarity?
AC or alternating current does not need to switch polarity, because the polarity is constantly switching, see [http://en.wikipedia.org/wiki/Alternating_current...
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Which supply has polarity AC or DC?
DC has polarity, while AC is constantly reversing in polarity. While the previous answer is quite correct in the sense of 'positive' and 'negative' charges, it's worth pointing out that 'polarity'...
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Don't be lazy. Look in a college physics book.
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AC/DC is an abbreviation for Alternating Current/Direct Current, the two forms of electrical current that can be used. This was done to symbolize the energy the band planned to convey.