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Rev. Notes > IGCSE > Simple phenomenon of magnetism
 
 
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Topics
 
Properties of magnets Basic cause of magnetism Properties of magnetic lines of forces
Ferus and non-ferus materials Methods of magnetisations Methods of demagnetisations
Experiment - pattern of magnetic lines of forces arround a bar magnet Properties of magnetic lines of forces Magnetic properties of iron and steel
Design and use of permanent and electromagnets
 

Properties of magnets

  • A magnet can attract magnetic materials such as iron, steel, cobalt and nickel
  • A magnet has two poles (i.e. North pole and South pole)
  • A freely suspended magnet always points in a fixed direction
  • Like poles repel and unlike poles attract each other

Magnetic and non-magnetic materials

Magnetic materials can be attracted by the magnet. For example iron, cobalt, nickel, alnico, steel.

Strongly magnetic metals are called ferromagnetic materials.

Non magnetic materials can not be attracted by the magnet. For example cork, glass, plastic, rubber, wood.

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