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) A charged particle in the presence of a uniform magnetic field perpendicular to the velocity vector must travel in a circular path (assuming no other forces are acting).

B) The magnitude of earth's B field is about 1 Tesla.

C) Magnetic fields do work on a charge when the charge has a velocity component perpendicular to B.

D) A magnetic field acts only on charges at rest.

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

F) Magnetic fields do work on a charge when the charge has a velocity component parallel to B.

G) Like magnetic poles attract.

Explanation / Answer

correct statements are ...................... A and E

C AND D are incorrect. because magneticfield never do work

g also incorrect because like poles repel

d is incorrect bere in motioncause magnetic field acts only on charges a

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