SV: [AMPS] Power Handling of Resistors

[Ian Roberts]

No man, relax! You are too tight!
Pose questions such as this (expanding the analogy below):
"so a 1/4 W resistor can handle a 5 MW (that's not milli-Watts) pulse if
the duty cycle is short enough?"

Cheers,
Ian ZS6BTE

sm5ki wrote:
> 
> No it is very tiring to try to follow this endless dicussion in US English.
> What on earth are some of you trying to prove? I have been sitting here for
> more than 1 hour trying to read to-days endless Kindergarten discussion. For
> my piece in mind I have soon to leave this amps net.
> 
> Not fun at all!!!!!!!
> de SM5KI

> >on 3/7/00 10:00, Peter Chadwick at Peter_Chadwick@mitel.com wrote:
> >
> >> Dave, are you saying that the amount of energy involved in 160 watts for
> >> 500msec is not the same as 1600watts for 50msec or 16kW for 5msec? Or am I
> >> misunderstanding you?
> >
> >Dave also cannot read.  I didn't just key 160 Watts for 500 msec.  I keyed
> >160 Watts for 2 seconds.
> >
> >So following your train of thought Peter:
> >
> >160 W for 2 sec
> >640 W for 500 msec
> >6.4 kW for 50 msec
> >64 kW for 5 msec!!!
> >
> >A Joule is 1 w-sec as defined by my IEEE dictionary.
> >
> >So 160 Watts for 2 seconds is 320 Joules.
> >640 Watts for 500 msec is also 320 Joules.
> >640 kW for 0.5 msec is ALSO 320 Joules.
> >
> >I guess Dave is the one who doesn't understand conservation of energy and
> >how things really work.
> >
> >Yes, the specious blather on the list IS entertaining.

etc, etc (yawn)...

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