What are the four problem of bar magnet
Answers
The four problems of a bar magnet are as follows :-
(i) The bar magnet damages data when kept close to magnetic storage items.
(ii) The strength of the magnetic field cannot be changed.
(iii) The bar magnet damages electronic equipments .
(iv) Bar magnet's strength of magnetic field weakens when note stored in favorable conditions .
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The four problems of bar magnet are -
1. Bar magnet like other magnets can loose their properties if they are heated , hammered or dropped from the height .
2. Bar magnet become weak if they are not stored properly .
3. Like other magnet ,the magnetic field generated by a bar magnet can damage electrical equipment .
4. A bar magnet is placed near a hard disk ,video cassette or even computer disk can caused the data stored by the magnetic particles on the item to be damaged .
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