Art wrote:
"Yes, the common thinking is that current changes direction to oppose
the forward moving current as with a reflection where the eddy current
moving in the reverse direction cancels the eddy current moving in the
other direction."

Transformers are laminated to reduce eddy current core losses.

Reverse currents on a transmission line or on an antenna are usually
called the reflected current.

Reflections are caused by discontinuities in the path of the EM wave.

In the case of an open circuit, the reflection coefficient is infinite
and the incident and reflected waves have the same magnitude and phase.
The voltage at the discontinuity is thus doubled. See Terman`s 1955 opus
page 89. But, the current goes to zero as conduction ends at the open
circuit. No energy is lost in the open circuit. It is just concentrated
in the electric field as the magnetic field loses its energy.

Best regards, Richard Harrison, KB5WZI

Richard Harrison wrote:
In the case of an open circuit, the reflection coefficient is infinite

Richard, I'll bet you know that the reflection coefficient
is 1.0 for an open circuit and -1.0 for a short circuit.:-)
--
73, Cecil http://www.w5dxp.com

Cecil, W5DXP wrote:
"Richard , I`ll bet you know that the reflection coefficient is 1.0 for
an open circuit and -1.0 for a short circuit. :-)

Yes, Cecil caught me not paying attention. At an open circuit, the
impedance is infinite but the coefficient of reflection is the ratio of
the voltage of the reflected wave to the voltage of the incident wave.
As both have the same phase and magnitude, value of the reflection
coefficient for an open circuit is 1.0, not infinity.

Best regards, Richard Harrison, KB5WZI

On Dec 29, 1:09*pm, (Richard Harrison)
wrote:
Art wrote:

"Yes, the common thinking is that current changes direction to oppose
the forward moving current as with a reflection where the eddy current
moving in the reverse direction cancels the eddy current moving in the
other direction."

Transformers are laminated to reduce eddy current core losses.

Reverse currents on a transmission line or on an antenna are usually
called the reflected current.

Reflections are caused by discontinuities in the path of the EM wave.

In the case of an open circuit, the reflection coefficient is infinite
and the incident and reflected waves have the same magnitude and phase.
The voltage at the discontinuity is thus doubled. See Terman`s 1955 opus
page 89. But, the current goes to zero as conduction ends at the open
circuit. No energy is lost in the open circuit. It is just concentrated
in the electric field as the magnetic field loses its energy.

Best regards, Richard Harrison, KB5WZI

Richard,
the above does not address my question other than a stream of words
It is difficult to cull anything with respect to my question that
allows for scientific debate or response
to which actual numbers can be applied. I know what the status quo is
with respect to present day thinking
so repetitive statements provide nothing to the thread.
Note how Cecil is responding in a scientific way without deviating
off point and learn from it. Otherwise there is no reason for me to
respond
Art