Why do you think it would be more practical to use an electromagnet to move scrap metal than to use a permanent magnet?

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Why do you think it would be more practical to use an electromagnet to move scrap metal than to use a permanent magnet?

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King 6 months 2021-08-20T17:28:23+00:00 1 Answers 6 views 0

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    2021-08-20T17:29:44+00:00

    Answer:

    #See solution for details.

    Explanation:

    -An electromagnet’s field can be rapidly changed by just controlling the amount of current. The magnetic strength can be varied over time.

    -This way, only a sufficient amount of current will be supplied to meet the needs.

    -Unlike the electromagnet, the permanent magnet has a fixed magnetic strength and can only lift a specified weight.

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