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PCBUILD - PC Hardware discussion List <[log in to unmask]>
Date:
Tue, 14 Apr 1998 23:48:28 -0700
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Treavor,

What you are refering to is the "Volt-Ampere" rating of the device.  (I
say this because you used the term 110 volts, and that is the common AC
voltage in the US.  110 volts DC has not been commonly available for
over 75 years!)  If an AC device consumes energy, and all you have is
the voltage and current values, then you will have the Volt-Ampere value
(usually referred to as VA).  To get the wattage, you need the VA value
and multiply it by the power factor (a function of the phase difference
between the voltage and current).  If voltage and current are in phase,
the power factor is 1.  If there is a phase difference, then it will be
less than unity.



Trevor Gibbs wrote:
>
> Hi Jim,
>
> Wattage is easy, it's simply Voltage multiplied by current so 110 volts
> x 2 amps =220 watts or roughly 1 kilowatt hour for every 4.5 hours your
> machine is on. This does not count the Monitor power consumption!
>
> Hope this helps
>
> Trevor Gibbs

--
Jean  Bourvic

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