A funny question in electromagnetism!

[vineet_kiran]

The only issue I see is, is that even though the secondary is higher voltage and lower current, wouldn't that secondary magnetic field be just about as strong as the primary field, requiring more input as we extract output.

@SkyWatcher123


In a normal transformer as you said the secondary magnetic field remains the same irrespective of number of turns.  Only voltage and current change, keeping the power constant.

What I am guessing in 'cut-coil transformer' is that the primary 'cut-coil' produces strong magnetic field consuming lesser power due to reduced resistance.   When this strong magnetic field varies with respect to secondary,  the secondary should produce stronger power output than the input keeping the magnetic field same. 

We are just getting the difference between input power required to produce strong magnetic field and output power produced by the strong magnetic field.   

Think that you have a superconductor primary coil and normal secondary coil. If you just create "ON" and "OFF" of primary coil,  the secondary goes on producing AC wave perpetually and current in the primary is not lost because it is superconducting. 

Just a guess.  Correct me if I am wrong.

[Bob Smith]

You touched very important topic ! The battle is about the choke which is high inductance yet very low ohmic resistance.
Any thoughts ? I have one and if you guess close to mine concept I will open source it here and for ever   
Game start ?

Trying to wrap my head around Vineet's "coil."  Are we looking at what is essentially a number of wires with their own capacitance, arranged in parallel, then dumping into a single strand back to the negative?  While current would be distributed between parallel wires, the voltage would be equal in each wire.  In this way, are we looking at a kind of step-up transformer?

If we put a high inductance, low resistance choke (many turns, heavy gauge wire?), are we not - subsequent to the "coil" - stepping up the amperage?
Just thinking out loud here, trying to understand possibilities...
Bob

Edit:  Interesting video that might shed some light on Vineet's "coil":
https://www.youtube.com/watch?v=vnsSRW7JqQA