Physics, 28.07.2019 21:00 alexisthegirl
Why are electromagnets used in metal scrap yards? a. they are temporary magnets, so they can be turned on or off. b. they are temporary magnets, so eventually the metal just falls off. c. they are weak permanent magnets. d. they are very powerful permanent magnets.
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Why are electromagnets used in metal scrap yards? a. they are temporary magnets, so they can be tur...
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