Give the the reason for the following question:-
Electromagnet and not a bar magnet is used in an electric bell.
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Electromagnet and not a bar magñet is used in an electric bell. as electromagnet has the ability to lose the magnetism when supply of current is cutted off . but a bar magnet has its own magnetism and can't be done by it like that it can't be used in a door bell or electric bell
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but mare than electro magnetic attraction
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