"Art Unwin" wrote in message
...
On Jan 23, 4:43 pm, (Richard Harrison)
wrote:
For example at 1 Hz the skin depth is about 2.6 in. in copper. At 10 Hz.
it is about 0.826 in. and at 100 Hz the depth is about 0.260 in. and at
1000 Hz the depth is 0.0826 in. etc.
Yes, I should have used "varied" instead of "proportional" But the
essence of the posting is still correct namely, it is false to state
that the skin effect always penetrate thro out the conductor
as is the statement that a current cannot travel thru the center of a
conductor where the material is devoid of eddy currents but enclosedn
by a eddy current shield

of course current travels through the center of the conductor, just not the
way you had thought.