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Author Topic: The bifilar pancake coil at its resonant frequency  (Read 567495 times)

synchro1

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Re: The bifilar pancake coil at its resonant frequency
« Reply #600 on: April 11, 2017, 03:08:38 AM »

Searcher1o1

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Re: The bifilar pancake coil at its resonant frequency
« Reply #601 on: April 11, 2017, 03:09:34 AM »
T. K.                              Battery is source when switch is on - coil becomes the source when switch is off

synchro1

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Re: The bifilar pancake coil at its resonant frequency
« Reply #602 on: April 11, 2017, 03:09:45 AM »
@Tinsekoala,


You're up! Define a "Negative Micro-Henry".

ramset

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Re: The bifilar pancake coil at its resonant frequency
« Reply #603 on: April 11, 2017, 03:12:34 AM »
Allen
your up


you need to make a video of your claim ?

or guide me thru a video
tell me what to do?

step by step
 or show your own work. to show where others have failed ?

.

synchro1

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Re: The bifilar pancake coil at its resonant frequency
« Reply #604 on: April 11, 2017, 03:15:03 AM »
Allen
your up


you need to make a video of your claim ?

or guide me thru a video
tell me what to do?

step by step
 or show your own work. to show where others have failed ?

.


@ramset,


I have over 40 videos on my Youtube channel as zebok3. Help yourself.

ramset

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Re: The bifilar pancake coil at its resonant frequency
« Reply #605 on: April 11, 2017, 03:19:34 AM »
Allen
Please pick one and post it here for replication ?

and what does "too soon" mean ?[your answer for where I could find this scrapyard magnet in Jersey ?

I have plenty of friends who worked on these machines ?


TinselKoala

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Re: The bifilar pancake coil at its resonant frequency
« Reply #606 on: April 11, 2017, 03:25:11 AM »

@Citfa,


We know who these five disinformation agents are.

And yet you cannot refute anything that any of these 5 people AND MORE say, and they have proven you wrong time and time again. You have posted more demonstrably false DISinformation here than I can shake a stick at. It's practically a fulltime job keeping up with your false claims, misrepresentations and weaseling.



Quote
The Ruhmkopff coil is a Hi-voltage transformer inverter. It generates AC current. The negative portion of the sine wave shows up as a curve beneath the zero line on your scope.

 That much at least is correct.  As several people have tried to explain to you, current is a flow of charge. Going one way you can call it "negative" and going the other way you can call it "positive" if you like, even though that is incorrect. Current (conventionally) flows from the more Positive pole of a source to the more Negative pole, always. And of course this is the convention that Ben Franklin left us with before it was understood that the Electron is the carrier of the unit Negative charge and that charge in fact flows from the more Negative pole to the more Positive pole.

In fact, one could claim with some justification that ALL electric current in wires is "negative"... since it is the flow of negative charge.

Quote
Both positive and negative current flow in the same direction out the secondary coil electrode.


This is false, because current in this particular AC system reverses direction--- as has been explained to you over and over and as is stated mathematically by Faraday's Law of Induction. Look at the sign of d(B)/dt when the B field rises and then falls! Conventional current always flows from the more positive pole of the source to the more negative pole. In your strawman Ruhmkorff (not Ruhmkopff) coil it is once again easy to prove you wrong with elementary electrical components and measuring instruments.

-E=d(B)dt -- look up the meaning of d(anything)/dt in your favorite calculus textbook, and pay attention to the sign of that differential and how it manifests on a graph of "anything" vs. time.

And you may wish to study this image from the Wiki article on your Ruhmkorff coil. Note the polarities of voltage and directions of current.

https://upload.wikimedia.org/wikipedia/commons/thumb/9/97/Induction_coil_waveforms.svg/200px-Induction_coil_waveforms.svg.png

TinselKoala

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Re: The bifilar pancake coil at its resonant frequency
« Reply #607 on: April 11, 2017, 03:29:03 AM »
T. K.                              Battery is source when switch is on - coil becomes the source when switch is off

That is right. Can you explain that to Synchro? Note that in your nice picture the (conventional) current continues to flow in the coil, through it and out of the BOTTOM of the coil when switched off, just as it does when the switch is on. Same direction, no reversal.

This is exactly what I demonstrate in my two videos with their associated schematics.

The schematic below, shown in my coil current direction video (1) was drawn on 30 March.

synchro1

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Re: The bifilar pancake coil at its resonant frequency
« Reply #608 on: April 11, 2017, 03:34:24 AM »
@Tinselkoala,


I challenged you to define a "Negative Micro-Henry" not deliver a dissertation on the Ruhmkopf coil.

TinselKoala

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Re: The bifilar pancake coil at its resonant frequency
« Reply #609 on: April 11, 2017, 03:36:36 AM »
Allen
Please pick one and post it here for replication ?

and what does "too soon" mean ?[your answer for where I could find this scrapyard magnet in Jersey ?

I have plenty of friends who worked on these machines ?

I've done a little research on scrapyard magnets since we last talked.
Just google "Are scrapyard magnets AC or DC?" without the quotes, and you will find a wealth of information from makers of these magnets.

TinselKoala

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Re: The bifilar pancake coil at its resonant frequency
« Reply #610 on: April 11, 2017, 03:38:24 AM »
@Tinselkoala,


I challenged yo to define a "Negative Micro-Henry" not deliver a dissertation on the Ruhmkopf coil.

Are you sure you don't mean DUMMKOPF coil? You can't even get the name of the coil right. Yo.

And note that you have YET ANOTHER refutation of your crazy current direction claim staring you right in the face. Yo.

synchro1

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Re: The bifilar pancake coil at its resonant frequency
« Reply #611 on: April 11, 2017, 03:41:18 AM »
Are you sure you don't mean DUMMKOPF coil? You can't even get the name of the coil right. Yo.

And note that you have YET ANOTHER refutation of your crazy current direction claim staring you right in the face. Yo.

@Tinselkoala,

You're over your head in deep shit right now and you know it.

TinselKoala

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Re: The bifilar pancake coil at its resonant frequency
« Reply #612 on: April 11, 2017, 03:45:54 AM »
@Tinselkoala,

You're over your head in deep shit right now and you know it.

Wrong again!

(If you are really 70 years old, why do you persist in acting like a nine-year-old?)

synchro1

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Re: The bifilar pancake coil at its resonant frequency
« Reply #613 on: April 11, 2017, 04:19:31 AM »
@Tinselkoala,


Admit you can't define "Negative Micro-Henry" and I'll start teaching you. In the mean time, knock off the cheap wisecracks.

Searcher1o1

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Re: The bifilar pancake coil at its resonant frequency
« Reply #614 on: April 11, 2017, 04:42:31 AM »
Tell me what happens in this setup