state three ways by which magnets can lose their magnetism
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Answer:
Heat. One factor that can cause demagnetization to occur is temperature changes, particularly very extreme temperature changes. ...
Improper Storage. Bar magnets for science class have their north and south poles clearly marked. ...
Age. ...
Impact. ...
Electromagnets to the Rescue!
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1.Heat
2.Improper storage
3.Age
Explanation:
Age
When you look at a magnet on a table, it appears perfectly still, but in reality its atoms vibrate in random directions. The energy from normal temperatures creates these vibrations.
Over several years, the vibrations from changes in temperature eventually randomize the magnetic orientations of its domains. Some magnetic materials retain magnetism longer than others. Scientists use qualities such as coercivity and retentivity to measure how well a magnetic material keeps its strength
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