Chemistry
Chemistry, 18.03.2021 03:10, jazzy1926

How are electromagnets temporary? A.) They are only magnetic when an electric current runs through them.
B.) They are only magnetic when a gravitational wave runs through them.
C.) They are only magnetic when near a lodestone.
D.) They are only magnetic for two weeks.

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How are electromagnets temporary? A.) They are only magnetic when an electric current runs through...

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