Re: Resonance

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Malcolm Watts" <m.j.watts@xxxxxxxxxxxx>

On 7 Apr 2005, at 8:49, Tesla list wrote:

> Original poster: Dgboorse@xxxxxxx
>
> Theoretical Question:
> (WHAT WOULD HAPPEN IF)  I were to take a roll of three wire-with
> ground insullated house wire (12 or 14 guage) and wind it on a form.
> (suppose we wind it from bottom to top and clockwise).
>
> At the bottom, connect the black wire to an input post, at the top,
> connect the black wire to the white, at the bottom connect the white
> wire to the red, and at the top, connect the red wire to another input
> post.  NOW, connect power to the two input posts.  (ignore the
> ground...that's for the next question:

You would end up with the nett inductance of single layer coil wound
with the same number of turns. Why? Because if I understand your
wiring scheme correctly, opposing currents in two of the wires
effectively cancel each other out.

> Q2:  What would happen if: At the bottom we connected the red, white,
> and black wire together and at the top we did the same.  What would go
> on in the ground wire when current is connected to r,w, and b wires?

If understand this bit correctly you are applying a voltage across a
single layer solenoid with three wires connected in parallel. I don't
see why there should be any current flowing in any other path.

Malcolm

> Thanks,
>
> Dave
>
>
>