On Jul 5, 9:16*am, Cecil Moore wrote:
On Jul 4, 8:26*pm, Keith Dysart wrote:

Are you suggesting that an
open circuited transmission line excited with a step function takes
infinitely long to read steady state?

Your infinitely long open-circuited transmission line example
certainly takes infinitely long to reach steady-state so the leading-
edge EM wave continues forever with zero reflected EM waves and your
argument involving reflected waves falls apart.

No reflections here, so little impact on any argument.

Your finite open-circuited transmission line example reaches DC steady-
state where EM waves cease to exist so your argument involving forward
and reflected waves falls apart.

When, exactly, does the EM wave cease to exist?
Just after the edge passes? Or only when the edge makes it all the way
back to the source?

....Keith