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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
Answer the following in detail.
Write a short note on the theory of magnetism.
Which magnet will you use?
You are lost in a forest.
A magnet remains steady in a ________ direction.
The figure shows a freely suspended magnet in the rest position. Copy the diagram and on its show:
- Angle of declination
- Angle in dip
Define the following term:
Angle of dip
Give scientific reason:
Not attraction but repulsion is a sure test of magnetism.
Draw the magnetic field lines around a bar magnet when a bar magnet is placed such that the N pole points North.
State the laws of magnetism.
Maximum iron filings stick in the middle of a bar magnet when it is brought near them.
