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What the electromagnet do

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What the electromagnet do

    • Posted by Elamaran J 7 years, 1 month ago

    CBSE > Class 07 > Science
    • 2 answers

    Vedansh Bajaj 7 years, 1 month ago

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

    1Thank You

    Yogita Ingle 7 years, 1 month ago

    Electromagnets can only attract magnetic materials. Plastic bag is a non-magnetic material and will not be attracted by an electromagnet. Hence, an electromagnet cannot be used for separating plastic bags from a garbage heap. electromagnet can be used for separating plastic bags from a garbage heap

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