OK Joe, You are correct. It has been a very long time since I have
been involved with heat related science issues. More current equals
more heat (for a given resistance) has been sufficient for me most of
the time without getting into the exact math.
It is good to know that some folks here still have those formulas on the
top of their heads.
73,
Don W3FPR
On 10/7/2013 5:57 PM, Joe Subich, W4TV wrote:
On 10/7/2013 5:31 PM, Don Wilhelm wrote:
> Geesh, how is that possible - twice the current equals twice as much
> heat and will exceed the capacity of the wire.
Sorry, Don ... twice the current => *four times* the heat. Heat
(energy in Joules) = Watts * seconds. One Joule (one Watt-second)
is 2.78e-7 kW*h
73,
... Joe, W4TV
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