Select True or False for each of the following statements regarding magnetism, a

Question

Select True or False for each of the following statements regarding magnetism, and the earth's magnetic field "B." 1. B does work on a charge only when the charge has a velocity component perpendicular to B. 2. Like magnetic poles attract. 3. For a bar magnet, the B - lines exit through the N pole and return through the S pole. 4. The earth's B lines are parallel to the earth's surface at all points. 5. The magnitude of earth's B is about 1E-4 Tesla. 6. The vector B acts only on charges at rest. 7. B does work on a charge only when the charge has a velocity component parallel to B.

Explanation / Answer

B) For a bar magnet, the B-lines exit through the N pole and return through the S pole.

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