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Simple phenomena of magnetism
Induced Magnetism
Methods of magnetisation
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Created by
Robin Jack
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A piece of steel becomes permanently magnetized when placed near a
magnet
, but its magnetism is usually
weak.
Iron can be magnetized more strongly by
stroking
it with one end of a magnet
Most effective method of magnetisation: place it in a
solenoid
and pass a large, direct
current
(d.c.) through the
coil.