At any point the magnetic field lines are in the direction of:
A)the magnetic force on a moving positive charge
B)the magnetic force on a moving negative charge
C)the velocity of a moving positive charge
D)the velocity of a moving negative charge
E)none of the above

Question

Quizplus · Accepted Answer

Magnetic field lines indicate the direction of the magnetic field, not the direction of force or velocity on a charge. The force on a moving charge is perpendicular to both the velocity of the charge and the magnetic field.

At Any Point the Magnetic Field Lines Are in the Direction