Electromagnets have two advantages over permanent magnets: (1) Electromagnets' magnetic strength can be increased or lowered. But the same is not possible with permanent magnets. (2) Electromagnets have a higher magnetic power than permanent magnets.
Electromagnets have two advantages over permanent magnets: (1) Electromagnets' magnetic strength can be increased or lowered. But the same is not possible with permanent magnets. (2) Electromagnets have a higher magnetic power than permanent magnets.
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Answer:
Electromagnets have two advantages over permanent magnets: (1) Electromagnets' magnetic strength can be increased or lowered. But the same is not possible with permanent magnets. (2) Electromagnets have a higher magnetic power than permanent magnets.
Answer:
Electromagnets have two advantages over permanent magnets: (1) Electromagnets' magnetic strength can be increased or lowered. But the same is not possible with permanent magnets. (2) Electromagnets have a higher magnetic power than permanent magnets.
Explanation:
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