What are magnetic keepers ? Name its material.
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Magnetic keepers are soft iron pieces placed across the poles of a magnet during storage to preserve its magnetism. It uses soft iron as its material.
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Suggest one way to recognise the magnetic field of the earth.
Name the material of core of an electromagnet for
(a) temporary magnet
(b) permanent magnet.
How are the north and south poles of a magnet located? Explain.
Draw diagrams of artificial magnets of four different shapes.