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प्रश्न
Write true or false of the following statement.
Permanent magnets get easily demagnetised.
विकल्प
True
False
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उत्तर
False.
Permanent magnets can not be demagnetised.
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संबंधित प्रश्न
Write true or false of the following statement.
Artificial magnets are weaker than the natural magnets.
Fill in the blank.
Temporary magnets are usually made up of .................
Select the correct answer
Making a magnetic substance a magnet by bringing it closer to another magnet without touching it, is
Select the correct answer
The artificial magnet used to detect direction in the laboratory is
State three differences between the temporary and permanent magnets.
Name the material of the core of an electromagnet for temporary magnet.
Fill in the blank.
Permanent magnets are generally made of steel, cobalt, nickel, or an alloy called ...............
Give a reason for the following.
Electromagnets are temporary magnets.
Answer the following in detail.
Distinguish between a temporary magnet and a permanent magnet.
You are given an iron strip. How will you make it into a magnet?
