1. What do you what do main by the poles of a magnet? Where are the poles of a bar magnet located?
2. Can we magnetize A copper bar? Give reasons for your answer.
3. Is it possible for us to isolate one pole of a magnet? Explain it.
4. Sudipto's mother was arranging her stitching box. Suddenly, the stitching box slipped from her hand and all the needles in the box got scattered on the ground. How can we collect all the little without wasting much of our time?
5. What do you mean by demagnetization? What are the various ways in which magnets can lose their magnetism?
6. Ritwik is seated in a room in which that sunlight is unavailable. He is is asked to sit facing East. Name a single compact device that he can use to fulfill this requirement. Suggest the sequence of step that he needs to follow.
7. Abhishek had two identical iron pieces X and Y, onely e one of which is a magnet. How he can find that which one is a magnet without using anything ?else.
8. Can we magnetise an iron piece permanently by the method of magnetic induction? Justify your answer.
9. Why we should take care of a magnet? How we can take care of a magnet? explain it.
10. A.Distinguish between natural magnet and artificial magnet.
B.write four differences between a permanent magnet and an electromagnet.
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