Re: [opensuse] [OT] How much power does a PC really consume?

James Knott wrote:
Doug McGarrett wrote:
On Friday 15 February 2008 08:15, Carlos E. R. wrote:
The Thursday 2008-02-14 at 12:06 -0500, Aaron Kulkis wrote:
I'm using one of these:


http://www.order.conrad.com/xl/1000_1999/1200/1250/1253/125319_AB_05_FB.

EPS.jpg
I would look for a device with a needle rather than
a digital readout.
I don't think you can measure true rms with a coil and needle. :-?

It was measured by thermal effects...

--
Cheers,
Carlos E. R.
There are electronic true-RMS voltmeters with analog readouts.
For example, the Balantine 323 has a nice big dial. You would have
to measure the voltage drop across a known value shunt resistor in
series with the load, and calculate the power from voltage and
current.

Ummm... He was talking about RMS, which implies voltage or current. There's no such thing as RMS power.

RMS is short for Root-mean-squared
i.e. _______
/ _ 2
V X

RMS can apply to any function vs. time (voltage, current,
power, etc.)


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