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Is the magnetism in Bar magnet permanent or temporary? Similarly, what about an electromagnet?

Is the magnetism in Bar magnet permanent or temporary?


Similarly, what about an electromagnet?


 

Grade:12

1 Answers

Yashashavi Momyan
14 Points
10 years ago

a bar is technically permanent ...but if you heat the bar magnet or make it fall on the ground it might loose its properties

a electromagnet remains magnetic only if their is a active electic field

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