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how to compute the wattage consumption of your electrical device?
only voltage and ampere ratings are given in the package.
2 Answers
- 1 decade agoFavorite Answer
It's very simple, volts multiplied by amps equals watts.
However this may not be the actually wattage of the device...instead it's how many watts it uses, which was your question.
The actual wattage of the device will be lower than what it uses, as it depends on the "power factor" of the device. This is how much current (amps) is drawn at what point of the voltage cycle. The more it draws at lower voltage the lower it's power factor and the less efficient it is.
- 1 decade ago
Power absorbed = voltage times current
So, if current flow is given as 10 Amps and you are also given the voltage [ lets assume 5 volts].
Power consumption would be 10 amps x 5 volts = 50 Watts
Remember. Amps Times Volts = Watts
