On Mar 29, 9:29 am, Cecil Moore wrote:
Keith Dysart wrote:
I offer you the same challenge as Cecil, find the error in my
analysis and then compute the correct amount of re-reflection.

We will be glad to do that if you will provide the
impedance value encountered by the reflected wave
with the source turned on. You have not yet done that.
Hint: It doesn't matter what impedance the reflected
wave encounters with the source turned off since
reflected waves are non-existent during that
condition.

The problem is completely solvable with the information
provided.

For examples of the methodology, google
'"lattice diagram" reflection'.

If your alternate methodologies require more information
to solve the problem, then I suggest that such alternate
methodologies are inferior to the standard one.

And to answer your question: 450 Ohms.
And to be more precise, the reflected wave continues for 62
cycles after the current source is turned off.

But truly, do look up lattice diagrams and learn the technique.
The number of problems that you will be able to solve will go
up significantly.

....Keith