1. May 29, 2009 #1

   sokrates

   

   Can anybody enlighten me on what demagnetizing field is and how it comes to existence?

    

   sokrates, May 29, 2009
2. 
   Phys.org - latest science and technology news stories on Phys.org

   • • Imaged 'jets' reveal cerium's post-shock inner strength
   • • Exciting silicon nanoparticles
   • • How many ways can you arrange 128 tennis balls? Researchers solve an apparently impossible problem
3. May 29, 2009 #2

   clem

   

   Science Advisor

   At the end of a bar magnet, H points in the opposite direction to M and B. This is due to the boundary condition on H at the end of a magnet. In many books, this is called a
   "demagnetizing field". That is a misnomer, because it is B and not H that acts to polarize the atoms in the iron. Since B near the end of the magnet is 1/2 its value at the middle, there is some tendency for the magnet to lose a bit of its magnetization (M) over time.

    

   clem, May 29, 2009
4. May 30, 2009 #3

   sokrates

   

   I'll try to absorb what you said, and then come back.
   Thanks for your post

    

   sokrates, May 30, 2009

• Log in with Facebook
• Log in with Twitter

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in