Chemistry
Chemistry, 13.10.2019 03:30, jholland03

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question 1

why are electromagnets used in metal scrap yards?



they are weak permanent magnets.

they are temporary magnets, so eventually the metal just falls off.

they are very powerful permanent magnets.

they are temporary magnets, so they can be turned on and off.

answer
Answers: 1

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why are electromagnets used in metal scra...

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