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To calculate the power consumption of an electrical or electronic device you have to multiply the voltage applied to the device times the current consumed. This is a little trickier than it would first appear; the voltage applied is usually 120 volts(117 to 125 but who's counting?) the current consumed is a bit more complicated. To measure this requires an ammeter ( an AC ammeter) and a little time. The current consumption will not be constant, so it must be averaged over time. The longer your time measurement the more accurate your power measurement will be.

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โˆ™ 2009-04-11 12:37:56
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Q: How do you calculate the power consumption?
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