Magnetism

What are the properties of magnetically soft materials?

What are the properties of magnetically soft materials?

• Easy to magnetise

• Easily lose magnetism

What are the properties of magnetically hard materials?

• Difficult to magnetise

• Do not easily lose magnetism (permanently magnetised)

What are the magnetic materials?

• Iron

• Nickel

• Cobalt

What magnetic materials are permanent magnets made from?

Hard magnetic materials

What magnetic materials are electromagnets made from?

Soft magnetic materials

What is a magnetic field?

Region around a magnetic where a force acts on another magnet or magnetic material

What do magnetic field lines represent?

Strength and direction of magnetic field

Which direction do magnetic field lines always point?

North to South