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Paper IPa6) An electromagnet is aA) Permanent magnet B) Temporary magnetc) Permanent magnet or D) of theseonlyonlytemporary magnetdepending upon thetype of material

Answer»

Unlike a permanent magnet, the strength of anelectromagnetcan easily be changed by changing the amount of electric current that flows through it. The poles of anelectromagnetcan even be reversed by reversing the flow of electricity. Anelectromagnet worksbecause an electric current produces a magnetic field.



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