Which of the following statements for magnetism are true? (Give ALL correct answ

Question

Which of the following statements for magnetism are true? (Give ALL correct answers, i.e., B, AC, BCD...) Unlike magnetic poles attract. B does work on a charge only when the charge has a velocity component perpendicular to B. B does work on a charge only when the charge has a velocity component parallel to B. B acts only on charges at rest. The magnitude of earth's B is about 1 Tesla. For a bar magnet, the B-lines exit through the N pole and return through the S pole. The earth's B-lines are parallel to the earth's surface at all points.

Explanation / Answer

A) Unlike magnetic ples attract each other - True
F) For a bar magnet the B lines exit through N pole and return through the S pole. - True

all other are not true

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