Engineering, 03.01.2021 23:30, 1230bering
7. Which of the following is a disadvantage of an electromagnet?
You can turn an electromagnet off and on.
Electromagnets are stronger than permanent magnets.
Electromagnets require power to operate.
It is easier to increase the strength of electromagnets.
Answers: 2
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7. Which of the following is a disadvantage of an electromagnet?
You can turn an electromagnet off...
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