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In Reply to: RE: Let us know when... posted by E-Stat on September 12, 2020 at 15:55:02
While the math might be 8th grade, the concepts JN discusses are probably 12th grade physics. Up to the challenge?
As a starter, notice the following statement from the first paragraph of JN's post you linked:The relation between inductance, capacitance, and dielectric of a double braid coax is the following...
L * C = 1031 * DC...
L is in nanohenries per foot
C is in picofarads per foot
DC is the dielectric coefficient of the insulation between the braids.
Clearly JN is discussing a specific construction of a coax cable consisting of two concentric tubular conductors of different diameters separated by a dielectric. The relationship JN provides applies only to that configuration and not to the general case as you seem to imply.
I think you've misunderstood what JN was attempting to do back then.
Be well!
Follow Ups:
Up to the challenge?What challenge?
The relationship JN provides applies only to that configuration and not to the general case as you seem to imply.
Your assumption is incorrect. Maybe you might learn something.
For all transmission lines, the relation LC = 1034 DC holds...
FOR ALL TRANSMISSION LINES.
FOR ALL TRANSMISSION LINES.
Got it? ;)
Just in case you don't consider "speaker cable" part of "all transmission lines", let's view another post. Are you up to it? LOL!
Edits: 09/13/20
give him a break, some people just aren't very good at word problems
best regards,
is a bad combination. ;)
*
Did you ever figure out your original moniker? Wasn't it Aristarchus?
Perhaps that was a victim of *condensation*. :)
go solo Ignatz ... back to your room full of mirrors
a lot of 'condensation' in here eh? /s
best regards,
And just a pinch of condescension.
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