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...) A) For a bar magnet, the B-lines exit through the N pole and return through the S pole. B) Like magnetic poles attract. C) The direction of B is indicated by the N pole of a magnetic needle. D) B acts only on charges at rest. E) The earth's B-lines are parallel to the earth's surface at all points. F) B does work on a charge only when the charge has a velocity component perpendicular to B. G) The magnitude of earth's B is about 1 Tesla.

Explanation / Answer

AC

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