# How to Calculate Power Amp Current Draw From an Output Wattage?

Every time you use an electrical appliance, it consumes power. The power consumption of appliances is usually printed on them, expressed as a value in watts. U.S. homes are supplied with a constant...
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http://www.ehow.com/how_7352578_calculate-current-draw-output-wattage.html

## How to Calculate Power Output?

How to calculate power in horsepower or watts, what the terms mean and why would they be of importance.

http://www.wikihow.com/Calculate-Power-Output

## How to Calculate Wattage From Volts and Amps?

Wattage, voltage and current -- or amps -- are all closely related. Watts are a measurement of power, which is realized by the combination of a device's potential to do work, measured in volts, and...
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http://www.ehow.com/how_8440468_calculate-wattage-volts-amps.html

## How to Test the Wattage Output on Alternators?

A car alternator produces the electricity necessary to power items such as lights, heating and windshield wipers. The amount of electricity it produces depends upon how charged your battery is and ...
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http://www.ehow.com/how_7479174_test-wattage-output-alternators.html

## How to Calculate the Power Draw of an RV Refrigerator?

In addition to gas operation, most RV refrigerators are capable of operating on 12 volt DC (direct current) battery power and 110 volt household AC (alternating current). Calculating the power dra...
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http://www.ehow.com/how_7461807_calculate-power-draw-rv-refrigerator.html