Demagnetization of repelling poles

  • Context: Undergrad 
  • Thread starter Thread starter Hypochondriac
  • Start date Start date
  • Tags Tags
    Poles
Click For Summary
SUMMARY

The discussion centers on the demagnetization of opposing poles of a ferromagnet. It concludes that merely forcing two like poles together will not lead to demagnetization, as the magnetic dipoles remain organized under such conditions. Effective demagnetization requires significant external forces, such as heat beyond the Curie point or an electromagnetic pulse. A practical experiment suggested is to magnetize an iron nail and observe the effects of repelling forces from a permanent magnet.

PREREQUISITES
  • Understanding of ferromagnetism
  • Knowledge of magnetic dipoles
  • Familiarity with the Curie point concept
  • Basic experimental skills in magnetism
NEXT STEPS
  • Research the effects of temperature on ferromagnetic materials
  • Explore the concept of electromagnetic pulses and their applications
  • Conduct experiments on magnetization and demagnetization processes
  • Study the behavior of magnetic dipoles under various external forces
USEFUL FOR

Physics students, materials scientists, and hobbyists interested in magnetism and its practical applications.

Hypochondriac
Messages
35
Reaction score
0
Bit of a simple question but one I've never really had to think about.

Lets say you have two opposing poles of a magnet (a ferromagnet i guess), they repel of course, but will forcing them to stay next to each other eventually demagnetize them?
My instinct tells me no, but maybe the force generated could disorganise the manetic dipoles in the ferromagnet?
 
Physics news on Phys.org
Interesting question, conventionally to destroy the dipoles in a magnet, sufficient heat past its Curie point and impact of the material will disable the magnetic capabilities. Try doing a simple experiment first, magnetize an iron nail, then repel the like poles with a permanent magnet. However, I do agree with your intuition that it will not disorganize the dipole. It will most probably require a huge amount of opposing magnetic force (i.e. electromagnetic pulse in the opposing direction.)
 

Similar threads

  • · Replies 7 ·
Replies
7
Views
3K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 4 ·
Replies
4
Views
6K
  • · Replies 9 ·
Replies
9
Views
2K
  • · Replies 27 ·
Replies
27
Views
4K
  • · Replies 9 ·
Replies
9
Views
3K
  • · Replies 2 ·
Replies
2
Views
5K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 8 ·
Replies
8
Views
1K
  • · Replies 2 ·
Replies
2
Views
1K