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."

TrueFalse The earth's B lines are parallel to the earth's surface at all points.
TrueFalse The direction of B is indicated by the N pole of a magnetic needle .
TrueFalse B does work on a charge only when the charge has a velocity component perpendicular to B.
TrueFalse The vector B acts only on charges at rest.
TrueFalse Unlike magnetic poles attract.
TrueFalse For a bar magnet, the B - lines exit through the N pole and return through the S pole .
TrueFalse The magnitude of earth's B is about 1E-4 Tesla.

Explanation / Answer

1. True

2. true

3.false

4.false

5.true

6.true

7true

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