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प्रश्न
Write true or false of the following statement.
Single touch method is better than the electrical method for making a magnet.
विकल्प
True
False
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उत्तर
False.
Electrical method is better than the single-touch method.
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संबंधित प्रश्न
Write true or false of the following statement.
Permanent magnets get easily demagnetised.
Fill in the blank.
Temporary magnets are usually made up of .................
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.
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.
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.
Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks.
| Column I | Column II |
| N - N | ______ |
| N - ______ | Attraction |
| S - N | ______ |
| ______ - S | Repulsion |
