Why is repulsion a surer test of magnetism than attraction ? Describe one application of the attractive property of magnets.
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Solution
Repulsion is the sure test for magnetism because it takes place only between two like poles of a magnet whereas attraction takes place between two unlike poles of a magnet and also between a magnet and a magnetic material.
Magnet is used to separate the useful magnetic substances like steel and iron from waste by the method known as magnetic separation.