Re: [Vo]:Toroidal inductors

2008-03-12 Thread Horace Heffner
On Mar 11, 2008, at 6:23 PM, Robin van Spaandonk wrote: I'm looking for an additional force significantly stronger than that between two hoop coils, in order to correct my Helium model. If I haven't made a mistake, then the normal hoop coil force would be orders of magnitude too

Re: [Vo]:Toroidal inductors

2008-03-12 Thread Robin van Spaandonk
In reply to Horace Heffner's message of Wed, 12 Mar 2008 03:56:09 -0800: Hi Horace, [snip] Well then you will be happy to consider that indeed the laws of magnetism, even though unchanged, don't apply in the same way, can involve orders of magnitude differences, because the current velocity

Re: [Vo]:Toroidal inductors

2008-03-11 Thread Horace Heffner
On Mar 8, 2008, at 4:05 PM, Robin van Spaandonk 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

Re: [Vo]:Toroidal inductors

2008-03-11 Thread Robin van Spaandonk
In reply to Horace Heffner's message of Tue, 11 Mar 2008 09:43:54 -0800: Hi Horace, [snip] It sounds like you are assuming the two tori major axis planes are parallel as well, both normal to the axis. Correct. If the radii are small in comparison to the distance between the tori, and the

Re: [Vo]:Toroidal inductors

2008-03-09 Thread Terry Blanton
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

Re: [Vo]:Toroidal inductors

2008-03-08 Thread Horace Heffner
On Mar 7, 2008, at 2:25 PM, Robin van Spaandonk wrote: Hi, If one has two separate toroidally wound inductors, and one passes a DC current through each coil, do they experience any force from one another, particularly when sharing a common major axis? I'm interested in both theoretical

Re: [Vo]:Toroidal inductors

2008-03-08 Thread Robin van Spaandonk
In reply to Horace Heffner's message of Fri, 7 Mar 2008 23:48:10 -0900: Thanks Horace, [snip] If both tori have an odd number of winding layers, or even if multiple winding layers are used but all or most proceed in the same major axis direction, or some combination of the above resulting

Re: [Vo]:Toroidal inductors

2008-03-08 Thread Robin van Spaandonk
In reply to Robin van Spaandonk's message of Sun, 09 Mar 2008 08:52:54 +1100: Hi, BTW, both tori would only have a single layer. [snip] This is along the lines of what I am trying to get at, though I was thinking more of interactions between the individual minor axis loops of one torus with

Re: [Vo]:Toroidal inductors

2008-03-08 Thread Horace Heffner
On Mar 8, 2008, at 1:08 PM, Robin van Spaandonk wrote: In reply to Robin van Spaandonk's message of Sun, 09 Mar 2008 08:52:54 +1100: Hi, BTW, both tori would only have a single layer. [snip] This is along the lines of what I am trying to get at, though I was thinking more of

Re: [Vo]:Toroidal inductors

2008-03-08 Thread Robin van Spaandonk
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

Re: [Vo]:Toroidal inductors

2008-03-08 Thread John Berry
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

[Vo]:Toroidal inductors

2008-03-07 Thread Robin van Spaandonk
Hi, If one has two separate toroidally wound inductors, and one passes a DC current through each coil, do they experience any force from one another, particularly when sharing a common major axis? I'm interested in both theoretical and experimental responses. Regards, Robin van Spaandonk The