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प्रश्न
You are given two similar bars. One is a magnet and the other is of soft iron. How will you distinguish and identify them ?
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उत्तर
Take first bar and suspend it in a stand with the help of a thread. So that it is free to rotate in horizontal plane. Note the direction in which it sets itself. If the direction is North and South it may be magnet. Again rotate it, if this time again it sets itself in north and south direction, it is a magnet, otherwise it is iron.
Now repeat above experiment with second bar and in the same way find it if it sets always in north and south direction then it will be a magnet.
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संबंधित प्रश्न
Select the correct alternative
A freely suspended magnet rests in
Describe a simple experiment to illustrate that like poles of two magnets repel each other while the unlike poles attract ?
“Poles exist in pair”. Comment on this statement ?
State three important uses of a magnet.
What is the magnetic induction? Explain with the help of a diagram.
Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
Define the term Effective length of a magnet
What is a natural magnet?
Define the following term:
Angle of declination
What is the connection between electricity and magnetism?
