2. What is the sure test of magnets, attraction or repulsion? Explain. (2 marks)
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Explanation:
A magnet can attract the opposite pole of other magnet as well as the magnetic substance (iron cobalt nickel). When two magnets or magnetic objects with like poles face each other, a force of repulsion pushes them apart.
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Answer:
repulsion is the sure test of magnetism.
Reason :
This is because , Repulsion takes place only between two likes poles of a magnet whereas attraction takes place between two unlike poles of a magnet and also between a magnet and a magnetic material . So by attraction it cannot be surely identified the substance is a magnet or not . So , repulsion is the sure test of magnetism .
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