Methods of Magnetization and Demagnetization
 

Methods of Magnetization and Demagnetization problem 10


Which statement about magnetism is correct?


  • Aluminum is a ferrous metal

  • A steel magnet can be demagnetized by heating it

  • The core of an electromagnet is usually made of steel

  • The magnetic field lines around a bar magnet are evenly spaced


 

main author and content editor: Odafe Adjeke