The Transformer is not a Flux Cutting device, its a Flux Linking device. George I. Cohn details this in his excellent paper.
The Transformer Iron, contains all the Flux, less than 1% of Flux leakage but yet the Transformer can be very efficient. 85-96%
When Windings are wound one on top of the other, this is called: Unity Coupling
Absolutely no Flux from the Primary Cuts the Secondary. Yet we still need the normal requirements of Electromagnetic Induction:
- The Magnetic Field.
- Time Rate of Change of the Magnetic Field.
- Cross Sectional Area.
Magnetic Flux ( φ ) is completely contained in the core, less than 1% leaks. We have another component left behind, this component is ( A ) and is called the Magnetic A Vector Potential. See attached pdf.
This is entirely an Electric Field, changing in Time with the Magnetic Component ( φ ). This is very well known in Transformer Theory today and not disputed by any Academics:
Notice that A = ∞
Where have we seen this before?
Electrometer readings were always close to parabolic, thus indicating that the source was of infinite capacity.
So, if one were to take a reference frame, a slide of Time, freeze it, and one could see the A Vector Potential as a Blue Haze, then one might be able to see something like this:
Where the Blue Donut shapes are the Magnetic A Vector Potential, Changing in Time and in Size, moving with a direction as the Bloch Wall Grows and Decays with Time. This I have shown in my Video:
Why do we see this Shape?
Electric Current is not well understood by many. Some have got it right and there are many experiments that can prove this. One being the Mr Preva Experiment and what Floyd Sweet said:
In the specific case of positive charges moving to the right and negative charges to the left, the effect of both actions is positive charge moving to the right.
Current to the right is: I = da+ / dt + da- / dt.
Negative electrons flowing to the left contribute to the current flowing to the right.
We know for sure this is true! Conventional Electric Current is made up of two total actions, Positive charges moving one way and negative Charges moving the other way, thus meeting in the Middle:
If you read the Ed Leadskalnin works, he said the same thing, but his description was Magnetic Poles South and North out each ends of the Battery.
Experiment: Take a Resistor, short it across a Battery, it will always burn out in the Middle! Take a small wire, do the same, it will burn out in the Middle, always!
Always hotter in the middle:
Yes other factors do also play a role, heat distribution and so on... But this concept is provable on the bench every day of the week.
So, The Magnetic Field, the way we Construct it, is made up from Positive Charges moving to the Right and at the same Time, Negative Charges moving to the Left! This is the reason we do not see Mono Poles.
This is the reason we have a Bloch Wall.
Effectively, the Magnetic Field as we see it today is made up of two Mono-Poles, back to Back. We all know what happens when we force two poles together.
The Magnetic Field, Changing in Time is a Living Breathing thing. Its Matter being Stimulated by the Magnetic Field.
This Electromagnetic Induction is called Transformer Induction, or Flux Linking Law, because there is no Cutting of Flux. The Flux is changing inside the Coils, but no Flux makes contact with the Coils. Think about it, what is it that creates the Magnetic Field? Un-Paired Electron Spins, what's an Electron? Charge... So What's Flux? A wake of Spinning Electric Field, the Magnetic A Vector Potential, It all makes perfect sence when thought about properly.
I hope we can all see that there is no Magic here, this is standard Science made a little more interesting by my descriptive post.