on what effect of electric current does an Electromagnet work
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Unlike a permanent magnet, the strength of an electromagnet caneasily be changed by changing the amount of electric current that flows through it. The poles of anelectromagnet can even be reversed by reversing the flow of electricity. Anelectromagnet works because anelectric current produces a magnetic field.
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Unlike a permanent magnet, the strength of an electromagnet caneasily be changed by changing the amount of electric current that flows through it. The poles of anelectromagnet can even be reversed by reversing the flow of electricity. Anelectromagnet works because anelectric current produces a magnetic field.
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