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."

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

I got F,F,F,T,F,F,F but that was wrong. Please help, I will rate very well! Thanks!

Explanation / Answer

T T T F T F T

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