An electromagnet is a soft metal core made into a magnet by passing an electric current through a coil surrounding it. They only maintain their magnetism if current continues to flow, if switched off they lose their magnetism.
Mutiso answered the question on October 12, 2018 at 08:16
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Date posted: October 12, 2018. Answers (1)
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Date posted: October 11, 2018. Answers (1)
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Date posted: October 11, 2018. Answers (1)
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Date posted: October 11, 2018. Answers (1)
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Date posted: October 11, 2018. Answers (1)
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