Magnetism is important in modern day technologies and is used in devices such as loudspeakers, transformers and computer hard drives. There are several types of magnetism, but it is ferromagnetism which is most well known and is responsible for permanent magnetic materials. There are only three ferromagnetic elements at room temperature -- iron, cobalt and nickel. Ferromagnetic materials lose magnetism as temperature is increased and have zero magnetism at their Curie temperature.
Instructions
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1
Place the magnet into the process oven.
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2
Set the temperature to some value above the Curie temperature of the magnet. For example, if the magnetic material is iron, then set the oven temperature to 780 degrees Celsius.
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3
Turn on the oven and wait for the magnet to reach its Curie temperature. The magnet will lose its magnetism.
