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12V Community Garden Sign - Need help with calculations.
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04-16-16, 11:58 AM
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jjackstone
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Join Date: Mar 2009
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Quote:
Originally Posted by
Sirius
Steve,
You need to look at Ohm's law. Voltage = Watts X Resistance. Or Watts = Resistance / Voltage.
Sirius,
I may be mistaken, but I believe Voltage = the square root of W x R. Then Power = V squared/ R.
JJ
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