Which of the following statements best compares electromagnets to permanent magnets in
a maglev train?
А
Permanent magnets change their polarity between north and south
electromagnets do not.
B
Electromagnets change their polarity between north and south, permanent
magnets do not
С
Both electromagnets and permanent magnets change their polarity.
D
Neither electromagnets nor permanent magnets change their polarity.
Answers: 3
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Which of the following statements best compares electromagnets to permanent magnets in
a maglev tra...
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