06-19-2008, 11:28 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 3,883
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The way it works is a mathematical formula. Amps does the work, voltage is the pressure and resistance is the load.
Appliances have a rating in watts. you'll also find voltage(s) and amperage on appliance nameplates.
120 volts times 20 amps equals 2400 watts. P=EI P(watts) E(volts) I(amps)
Also E=IR volts equals amps times resistance
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