Select True or False for each of the following statements regarding magnetism, a
ID: 1554372 • Letter: S
Question
Select True or False for each of the following statements regarding magnetism, and the earth's magnetic field "B."
The vector B acts only on charges at rest.
The earth's B lines are parallel to the earth's surface at all points.
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 parallel to B.
B does work on a charge only when the charge has a velocity component perpendicular to B.
The magnitude of earth's B is about 1 Tesla.
Like magnetic poles attract.
Explanation / Answer
The vector B acts only on charges at rest. ---- False
The earth's B lines are parallel to the earth's surface at all points. -----False
For a bar magnet, the B - lines exit through the N pole and return through the S pole . ----True
B does work on a charge only when the charge has a velocity component parallel to B. ----- False
B does work on a charge only when the charge has a velocity component perpendicular to B. ---- True
The magnitude of earth's B is about 1 Tesla. ------ False
Like magnetic poles attract-----True