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प्रश्न
It was observed that a pencil sharpener gets attracted by both the poles of a magnet although its body is made of plastic. Name a material that might have been used to make some part of it.
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उत्तर
The blade of a pencil sharpener is made of iron. Iron is a magnetic material. Since magnets can attract objects made of magnetic materials, a pencil sharpener gets attracted towards both poles of a magnet.
संबंधित प्रश्न
Write true or false of the following statement.
Permanent magnets get easily demagnetised.
What are natural and artificial-magnets?
Describe the method by which an iron bar can be made a magnet.
Name the material of the core of an electromagnet for temporary magnet.
Tick the most appropriate answer.
Temporary magnets are made of
Tick the most appropriate answer.
A permanent magnet can be demagnetized by
State if the following statement is true or false. Correct the statement if it is false.
Temporary magnets are made of cobalt.
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.
You are given an iron strip. How will you make it into a magnet?
