Magnetism – Practice
1) How could you make a compass using a magnet, a pin, tweezers and a glass of water?
2) Use the diagram below to explain and demonstrate how any magnet is always dipolar:
3) Below is a diagram of a ferromagnetic material:
a) Explain how we can conclude that the ferromagnetic material above is not magnetised:
b) It is exposed to a strong magnetic field as shown below. Complete the diagram to show what happens to the domains after being exposed to the external magnetic field: