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buck rojerz
 
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Default Turn Your Power Supply into an Ohmmeter - It's Free!

"Sir Charles W. Shults III" wrote in
. com:

How hot? One solution is P=EI, where power in watts is equal to
the product
of voltage and current. So the voltage drop across the resistor
multiplied by the current in amps through the resistor will yield
watts of heat created by the resistor.
Now, if you know the composition of the resistor, you can look up
the
specific heat of the material and calculate how much energy it takes
to change its temperature. You will need to know how many joules of
energy have been applied. Calculate the joules by multiplying the
time that the power was applied in seconds by the power in watts. Now
look at the specific heat table and it will tell you how many joules
per Kelvin it takes to raise the temperature.
If you have any physics experience, it will be very simple.

Cheers!

Chip Shults
My robotics, space and CGI web page - http://home.cfl.rr.com/aichip




Now your getting logical and there is evidently no room for logic in this
thread.