Methods of Magnetization and Demagnetization
 

Methods of Magnetization and Demagnetization problem 1


How can a permanent magnet be demagnetized?


  • Cool the magnet for a long time

  • Hit the magnet repeatedly with a hammer

  • Leave the magnet in a coil which carries direct current

  • Pass a small current through the magnet


 

main author and content editor: Odafe Adjeke