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प्रश्न
Artificial magnets are made in different shapes such as ______, _____ and _______.
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उत्तर
Artificial magnets are made in different shapes such as Bar-magnet, Horseshoe magnet, and Ring magnet.
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संबंधित प्रश्न
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 |
Select the correct alternative
A freely suspended magnet rests in
What is the magnetic induction? Explain with the help of a diagram.
Tick the most appropriate answer.
The surest test of magnetism is
Answer the following in detail.
Write a short note on the theory of magnetism.
Define the following term regarding a bar magnet:
Effective length
How will you do this?
Find the north pole of a magnet.
When magnetic material is taken close to a magnet, the material acquires ______.
Bar magnets are often stored in pairs as shown in the figure. E and F being pieces of metal.
Name the metal used for E and F.
Write a short note on lighting conductors.
With the help of a diagram explain the following:
Magnetisation of steel needle using electric current such that the pointed end should have north polarity.
Magnets are used in _______ for generating electricity.
Consider the statement given below and choose the correct option.
Assertion: Iron filings are concentrated more at the magnetic poles.
Reason: The magnets are so sharp.
Thamizh Dharaga and Sangamithirai were playing with a bar magnet. They put the magnet down and it broke into four pieces. How many poles will be there?
What is the connection between electricity and magnetism?
What are the factors that determine the strength of the magnet?
Give the uses of magnets in everyday life.
