What Determines the Force Between Two Magnets?

  • Thread starter Thread starter johann1301
  • Start date Start date
  • Tags Tags
    Force Magnets
AI Thread Summary
The force between two magnets depends on their magnetic strength, orientation, and proximity. In the scenario presented, if magnet A can lift 1kg and magnet B can lift 10kg, the interaction force could be stronger than both magnets or between their strengths, depending on their arrangement. When magnets are in close contact, the stronger magnet can influence the weaker one, potentially increasing the overall force. If the weaker magnet can be magnetized by the stronger one, the resulting force will be closer to that of the stronger magnet. The specific outcome is highly dependent on the geometry and magnetic properties of the magnets involved.
johann1301
Messages
216
Reaction score
1
If i have one magnet A which can lift(hold) 1kg(9,8N) and i have another magnet B which can lift 10kg(98N), what would the force between these magnets be?

I don't need an exact answer, but i do see to possibilities:

1: The force would be stronger then both the magnets
2: The force would be stronger than A, but weaker then B (somewhere in between)

Which one is it?
 
Last edited:
Physics news on Phys.org
This is a very geometry dependent situation. It depends on the shape of the magnets and their orientation and relative positions with respect to each other.
 
I imagine that the magnets are in contact(very close) and that the fields around them are in such a way that the maximum force possible is observed
 
Last edited:
When a magnet picks up high mu iron, the iron gets the magnetization M of the magnet picking it up.
If the 1kg magnet has a locked in M, the force will be close to the average.
However (and more likely) if the 1kg magnet can be magnetized by the 10 kg magnet (just as iron is),
Then the force will be close to that of the 10 kg magnet.
 
Thanks:)
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'
So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
It may be shown from the equations of electromagnetism, by James Clerk Maxwell in the 1860’s, that the speed of light in the vacuum of free space is related to electric permittivity (ϵ) and magnetic permeability (μ) by the equation: c=1/√( μ ϵ ) . This value is a constant for the vacuum of free space and is independent of the motion of the observer. It was this fact, in part, that led Albert Einstein to Special Relativity.

Similar threads

Back
Top