one for the theorist

[Paul Maddox]

MC,


>
>I've recently read a book where the inductance of a single piece of wire
>was given. This is strange, I thought, because you can only speak of the
>inductance of a loop. And, after all what I know, the magnetic energy
>of a single wire without "back" current path goes towards infinity and
>so does L.
>

nope, a peice of wire has inductance...
mind you're talking tiny, and you'd be in the Ghz range before it became a 
problem.

>
>So, is this a stupid book, or is it me who is the stupid?
>

not stupid...

wait till you play with RADAR!!!
With radar you have at transmission line that doesnt exist.. wave guide.. 
because of the frequency used the waveguide is the outer (comparing this to 
coax) and the inner is a "virtual" piece of wire.

Its great stuff...

Paul


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