Two kinds of induction - Henry

[nix85]

more along these lines

https://youtu.be/5AovJARwbqI?t=441
https://www.youtube.com/watch?v=mrruwLqy8ho

[partzman]

Nix,

I don't wish to derail your thread but the following may be instructive in regards to the fields in a closed toroid core.

The bench device tested is shown in the first pix.  It is a 2" OD ferrite toroid core with an RS pot core inserted in the center of the hole.  The schematic is shown in the second pix with Lh representing the coil on the RS core.  A resonating cap Cres is connected across the output of Lh.  The primary of the toroid is driven by an ac source and the secondary is loaded with a resistive load.

Pix three shows the scope measurements of the assembly.  CH2(blu) shows the input ac voltage at ~11kHz fed to the primary, CH3(pnk) shows the output voltage across Cres, CH1(yel) is the output voltage across the load RL, and CH4(grn) is the current in the primary.  Note the peak voltage of 372v at the positive peak and Cres is .047uf so the saturating resonant energy is ~ +-3.25mJ each cycle.

What is important here is the fact that Lh is driven into extreme saturation as is indicated by the flat top of the voltage across Cres.  The question is, 'what is creating the saturation of the un-gapped RS core and the resulting energy?'  Keep in mind that Lh is not electrically connected to the toroid's circuitry and the A field is not the source.

Regards,
Pm 

[nix85]

i just dont understand what u mean "A field is not the source", a-field is ALWAYS the source, what we perceive as magnetic field is just it's axis (according to rick anderson's etheric smoke ring model which i believe to be accurate).

[partzman]

In this example, it is the H field or magnetizing force that drives Lh into saturation.  Notice the axis of orientation of RS core for Lh in the pix in relation to the open core areas between the primary and secondary windings.  It is in these open areas that the mmf or ampturns exits one side and re-enters the opposite side when the secondary is loaded or shorted or in opposite polarity to the primary and in this case it alternates at the input frequency.

If the RS core is rotated out of alignment with the open core areas, the saturation of Lh will diminish and will eventually cease at 90 degrees of rotation.

This presence of the H field is seen in every transformer configuration and is caused by the normal Lenz effect of the secondary. 

If anyone attempts to replicate this effect, the input frequency must be initially lowered to a point that raises the H field current to a high enough level to saturate the RS core.  Once the core "snaps" into saturation, the frequency can then be raised to a much higher level as in this example.

In reference to whether this could be attributed to the A field, keep in mind some hold to the belief that the A field is a mathematical construct only.

Regards,
Pm

[nix85]

"It is in these open areas that the mmf or ampturns exits one side and re-enters the opposite side when the secondary is loaded or shorted or in opposite polarity to the primary and in this case it alternates at the input frequency."

so flux in the middle appears due to secondary current when secondary is loaded, yet secondary current is result of flux in the middle cutting the secondary. do u see the catch 22, that for flux in the middle to appear there already has to be secondary current and how is there a secondary current if middle h field has not yet formed.

there is no avoiding the a-field, and this is only one of examples that prove it's existence.