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