Roy Lewallen wrote:
Why is this cheating? There is reverse power on the line. The source is
not absorbing the reverse power.

If "the source is not absorbing the reverse power", then the reverse
power is being re-reflected to become the forward power. During steady-
state, the forward power is not coming from the source so it has to be
coming from a re-reflection process. It can only come from one of those
two places. In a lossless line, you could disconnect the line at the
source and there would still exist forward energy and reflected energy.
The reflected energy would be reflected from one open end and the forward
energy would be reflected from the other open end. It's essentially a super-
conducting ring that has been cut and straightened out.

Make the stub one second long and you will have 200 joules stored in
the line. The source will have supplied all of that 200 joules with
the voltage and current in phase, i.e. it was supplied as joules/sec.
--
73, Cecil http://www.qsl.net/w5dxp



-----= Posted via Newsfeeds.Com, Uncensored Usenet News =-----
http://www.newsfeeds.com - The #1 Newsgroup Service in the World!
-----== Over 80,000 Newsgroups - 16 Different Servers! =-----