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If you have a power adapter plugged into a wall socket, but the power adapter is not plugged into the device it is intended for (cell phone, laptop, etc), does that power loop back into the grid? Do you pay for it?
Similarly, if you have a computer with, say, a 500w power supply, but the machine is running at a very low pace (say, just running DOS), does it still suck down 500w, or does it use less (and by "use", I mean, it doesn't show up on your bill).
Yeah, something with a transformer on it plugged into a wall will have one of the loops energized. It'll draw some power but not a bundle.
And 500W is some kind of rated wattage for a computer PSU. Higher-capacity ones tend to be more efficient at conversion overall, actually, though I don't know how good the correlation is. Plenty of computers idle at...what, 50W nowadays?
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For the second, 500w is the capacity of the power source, not its constant running wattage.
And 500W is some kind of rated wattage for a computer PSU. Higher-capacity ones tend to be more efficient at conversion overall, actually, though I don't know how good the correlation is. Plenty of computers idle at...what, 50W nowadays?
your computer will pull about 20 watts when off.
so says oprah...