Physics
What is a magnet?
Magnetism
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Answer
The substances which have the property of attracting iron, are called magnets.
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Related Questions
Write true or false for each statement.
(a) Artificial magnets are weaker than natural magnets.
(b) Poles of a magnet cannot be separated.
(c) A magnet can attract only a magnetic substance.
(d) A magnet has no effect when it is heated to a high temperature.
(e) Permanent magnets get easily demagnetised.
(f) Magnetic poles occur in pairs.
(g) Single touch method is better than the electrical method for making a magnet.
(h) Magnetic keeper is a wooden piece.
(i) Copper cannot be magnetised.
Match the following columns :
Column A Column B (a) Steel (i) to store magnets (b) Soft iron (ii) temporary magnet (c) Used in electric bell (iii) permanent magnet (d) Magnetic keepers (iv) electromagnet What are magnetic and non-magnetic substances? Give two examples of each.
What are natural and artificial magnets?