Magnets and electromagnet power?

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Discussion Overview

The discussion revolves around the power of electromagnets at different voltages and the strength of magnetic attraction versus repulsion in permanent magnets. Participants explore claims made in a controversial source regarding high voltage electromagnets and the comparative strength of magnetic poles.

Discussion Character

  • Debate/contested
  • Technical explanation

Main Points Raised

  • Some participants question the validity of claims that high voltage 5000V DC electromagnets are more powerful than low voltage 12V DC electromagnets, suggesting that the magnetic field strength is dependent on current rather than voltage.
  • One participant asserts that the attraction of a north pole is not stronger than the repulsion of a south pole, challenging the claim made in the original source.
  • Another participant emphasizes the importance of not discussing or promoting "crackpot" ideas, indicating a preference for focusing on scientifically grounded discussions.
  • A participant expresses confusion about the statements and seeks clarification on their truthfulness, indicating a desire for a deeper understanding of the concepts involved.

Areas of Agreement / Disagreement

Participants exhibit disagreement regarding the strength of magnetic attraction versus repulsion and the relationship between voltage and current in electromagnet power. No consensus is reached on the validity of the claims from the controversial source.

Contextual Notes

The discussion includes references to Maxwell's equations and the conditions under which magnetic fields operate, but does not resolve the implications of these equations in the context of the claims being debated.

Jacquesl
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Magnets and electromagnet power?

It’s said in the <crackpot link removed - Zz> e-books that high voltage 5000v DC electromagnets are more powerful that low voltage 12V DC electromagnets.

And in the permanent magnet motor it’s said that “The Attraction of a magnet ( North ) is always stronger than the Repulsion ( South ) “

Are this statement true or false, it’s starting to confuse me?
 
Last edited by a moderator:
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Please note that, per our guidelines, crackpottery (and so, free advertisement for crackpot links) are not permitted.

While there is some "value" to discussing why such crackpottery is wrong, unfortunately, considering just now many there are out there, we will be swamped with these things. We have tried it, and it didn't work.

So in case it is still isn't clear, we do not do any discussion about crackpot ideas or provide free advertisement of their websites. Period!

Zz.
 
Ok sorry, no problem with that “crackpot link” You’ll do me a favor if you can report them as fraud, if they are talking crap, did you think I’ve actually paid for that e-books, so no money is lost

But to come back to the “crackpot link” statements, are that true or false, if I’m correct this is the right place to discuss that kind of questions
 
To answer your question #2:

The North is not stronger than the south.

And #1:

Maxwell's equation for static electromagnetics states that the circulation of the magnetic field for a surface S bounded by the curve C is equal to the flux of electrical current through S divided by a constant. This means that the magnetic field is dependent on the current, NOT the voltage. So number 1 is wrong too if you put enough resistance on the high voltage case.
 
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