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Old December 28th 07, 02:27 AM posted to rec.radio.amateur.antenna
Keith Dysart[_2_] Keith Dysart[_2_] is offline
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First recorded activity by RadioBanter: May 2007
Posts: 492
Default Standing-Wave Current vs Traveling-Wave Current

On Dec 27, 6:28*pm, Cecil Moore wrote:
Keith Dysart wrote:
Cecil Moore wrote:
The instantaneous power is 10 joules per 0 sec?


There is definitely a problem with that.


But an instantaneous value of 10 joules/sec; that
is useful.


But that instantaneous instant is NOT one second
long. Exactly how long is that instantaneous
instant? 1 ms? 1 us? 1 ns? more? less?


Time for some calculus review. Look up differentiation.

Perhaps try googling "in the limit as t approaches 0..."

But at least you now see the utility.

...Keith