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प्रश्न
What are natural and artificial-magnets?
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उत्तर
- Natural magnets: Natural magnets are those which are found in nature e.g. load stone.
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Artificial magnets: Man-made magnets are called artificial magnets, e.g. electromagnet.
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संबंधित प्रश्न
Write true or false of the following statement.
Artificial magnets are weaker than the natural magnets.
Select the correct answer
Making a magnetic substance a magnet by bringing it closer to another magnet without touching it, is
Describe the method by which an iron bar can be made a magnet.
State three differences between the temporary and permanent magnets.
Name the material of the core of an electromagnet for temporary magnet.
Tick the most appropriate answer.
Temporary magnets are made of
State if the following statement is true or false. Correct the statement if it is false.
Temporary magnets are made of cobalt.
Give a reason for the following.
Electromagnets are temporary magnets.
Answer the following in detail.
Distinguish between a temporary magnet and a permanent magnet.
Write true or false of the following statement.
Single touch method is better than the electrical method for making a magnet.
