Didn't Tesla claim reduced self-inductance with the bifilar winding? http://en.wikipedia.org/wiki/Bifilar_coil
Terry On Sat, Mar 8, 2008 at 8:37 PM, John Berry <[EMAIL PROTECTED]> wrote: > Not read any of this thread yet, but it reminds me of a thought I had > yesterday, I wondered if I could find a way to make a time varying magnetic > field not cause induction, and my conclusion is that I could. > > I could (at one point anyway) cancel the inductive field around a solenoid > if I wound it over a toroid with the opposite inductive field but no > detectable magnetic field. > > > > > On Sun, Mar 9, 2008 at 2:05 PM, Robin van Spaandonk > <[EMAIL PROTECTED]> wrote: > > In reply to Horace Heffner's message of Sat, 8 Mar 2008 15:15:02 -0900: > > Hi Horace, > > [snip] > > > > >Since you are talking about single layer tori, they > > >both have major axis hoop currents, and thus the confined fields of > > >both tori are shared with, overlap, the hoop fields of the opposed > > >tori, and thus there is a much stronger interaction than one would > > >obtain from the major hoop currents alone. I hope this is making > > >sense and is not just a lot of word salad. > > [snip] > > It makes sense to me, though if the major axis is common to both tori, > then the > > extending field of the "first" torus would be largely perpendicular to the > > enclosed field of the other torus. In such a situation, would you still > expect a > > strong interaction, and could you quantify it? > > > > > > > > Regards, > > > > Robin van Spaandonk > > > > The shrub is a plant. > > > > > >
