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When a bar magnet is dropped from the to...

When a bar magnet is dropped from the top of a building its magnetism decreases . Why ?

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The regular arrangement of the molecular magnets in a magnet is disturbed.
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NEW JOYTHI PUBLICATION-MAGNETISM AND MATTER-EVALUATION QUESTIONS AND ANSWERS
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  9. You are given two graphs. What conclusion do you draw from the graphs?

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  10. What do you know about the following terms ? a. Isogonic line and Ag...

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  11. Show that the magnetic moment of an atom is M = 1/2 eomegar^2 , where ...

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  12. According to Bohr's postulate, the angular momentum of an electron , m...

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  14. The following terms find importance in magnetism . Explain them a. M...

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  15. Figure shows a solenoid current of I- ampere Its area is 'A' and ...

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  16. The relation between mur andXm is mur=1+Xm How will you arrive at this...

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  18. Is there any importance for the curie point ? Explain .

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  20. Define the S.I unit of magnetic field '' A charge moving at right angl...

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