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प्रश्न
What is a magnet?
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उत्तर
The substances which have the property of attracting iron, are called magnets.
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संबंधित प्रश्न
Fill in the blank
To light a table lamp and to run a refrigerator, we use ______ as the source of electricity.
Match the following
| Column A | Column B |
| (a). Human body | (1). electric bell |
| (b). Silk thread | (2). current |
| (c). Charge in motion | (3). conductor |
| (d). soft iron | (4). electromagnet |
| (e) . Electromagnet | (5). insulator |
Answer the following.
Why is it not possible to isolate a single magnetic pole?
Give a reason for the following.
Iron is a magnetic substance.
Answer the following in short.
What is a magnet? Differentiate between natural and artificial magnets.
Which magnet will you use?
You are lost in a forest.
Describe, how you will proceed to determine the position of the pole of a bar magnet.
What do you understand by the term magnetic declination?
Give scientific reason:
Two steel needles hanging from the lower end of a vertical bar magnet do not hang vertically.
