The bifilar pancake coil at its resonant frequency

[MileHigh]

I said the magnetic field of a pancake coil,would be the same as that of a ring magnet-and it would be.

Just work it out in your head and get it right.

[TinselKoala]

@Tinselkoala,

So you're quoting Citfa for authority now?

He is certainly a lot more of an authority than YOU claim to be.

"A flux density of one Wb/m2 (one weber per square metre) is one tesla".

"Henry (H). Henry is the unit of inductance. 1H = 1Wb / 1A ... One ampere-hour is equal to 3600 coulombs".

Here's a question for you: How much magnetic strength will one ampere-hour of current generate in an inductor of one Henry of inductance?

I've got some news for you, genius. The Ampere-hour is not a measure of CURRENT.
Figure it out: An Ampere is a Coulomb of charge per second. So the units of the Ampere-hour are (Coulombs/second) x 60 seconds per minute x 60 minutes per hour = 3600 Coulombs. The Ampere-Hour is a measure of CHARGE.


See the wiki if you don't believe me. Units are important! At least to people who actually understand them.


https://en.wikipedia.org/wiki/Ampere_hour

[Magluvin]

What I wanted to try with a bifi pancake is put some maple syrup on it and eat it.

In Teslas transmitter and receiver pat drawing, it shows what 'really' looks like each having a pancake coil 'with' a low number turn winding, 2 turns in the drawing as I remember, around the outer perimeter of the pancake winding, of which I believe the outer 2 turn winding is a primary in the transmitter and it is a secondary in the receiver. So if like the drawing, of which was depicted as such in comparison to many coils shown otherwise in his other works, the 2 turn outer winding seems like it was most certainly placed there so the 2 windings would have the best mutual induction, wouldnt ya think?

So maybe instead of just messing with a pancake coil to see what it does in comparison to others on its own, give the outer winding a whack and make it movable to see if it is on the same plain as the bifi if that gives best mutual induction, and try it both ways, like it were a transformer and see what ya get. Just wonder if it would be the same ole same ole just like a regular transformer, or maybe not. No core. maybe it is better than a cylindrical air core. maybe not.

But there must be a special purpose for a pancake coil, otherwise why take pics of yourself sitting in a chair in front of one.

Mags

[Magluvin]

And if the 2 turn coils position on the outer perimeter of the pancake is the best for mutual induction, then what does that say about the pancakes field in comparison to other coils or magnets?

Mags

[MileHigh]

Contrary to what the resident authorities continue to shove down the throats of those who will not do their due diligence, there is something special about the bifilar coil.

Right, it's the familiar story.  "There is 'something special' about the bifilar coil but I will not say what it is."  Isn't that the essence of what you are saying?

Please, go ahead and state exactly what is special about the bifilar coil and how you can apply that to accomplish something practical in the real world.  Just go ahead and say it.

Neither of these wonders have seen the light of day, it's up to us to rediscover them. 

And this is the same old self-flagellation pitch.  You are not worthy!   I am NOT going to tell you how it works.  It's a mystery that YOU must figure out for yourself.  Why should "we" share information with the likes of YOU? 

Sorry, but I think the sarcasm is justified because I have seen you and many others on this forum scold people for simply asking for the alleged information.