MAGNETISM:
Magnetism is a force of attraction or replusion that acts at a
distance. It is due to a magnetic field, which is caused by
moving electrically charged particles. It is also inherent in magnetic
objects such as a magnet.
A magnet is an object that exhibits a strong magnetic field and will
attract materials like iron to it. Magnets have two poles, called the
north (N) and south (S) poles. Two magnets will be attacted by their
opposite poles, and each will repel the like pole of the other magnet.
Magnetism has many uses in modern life.
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