Question

5.
Write the different ways through which magnets can be made to lose their
magnetism ​

Answer 1

Answer:

Via heat: ferromagnet materials will lose their magnetism if heated above a point known as the Curie temperature. Via a demagnetizing magnetic field: permanent magnets exhibit a characteristic called coercivity, which is the ability of a material to withstand being demagnetized by an applying an magnetic field.

Answer 2

Answer:

The answer depends on the magnet.A temporary magnet can loss its magnetism in less than 1 hour.