On Dec 12, 8:21 am, Cecil Moore wrote:
Keith Dysart wrote:
To find the length of the 600 ohm line, do I not just plot -j567/600
and work from there? It seems to me that it yields the same
answer regardless of the content of the black box.

Double the frequency and see what happens.

There are certainly many experiments one can conduct
to deduce an equivalent circuit for the interior of the black
box.

But for this sub-thread, which started with 90 "electical degrees",
a single frequency seems to me to be strongly implied.

....Keith