If a steady magnetic field exerts a force on a moving charge,that force is directed
A)in the direction of the field.
B)opposite the direction of the field.
C)at right angles to the direction of the field.

Question

Quizplus · Accepted Answer

The force exerted by a steady magnetic field on a moving charge is at right angles to the direction of the magnetic field and also at right angles to the direction of the velocity of the charge. This is described by the famous Lorentz force equation: F = q(v x B), where F is the force, q is the charge of the particle, v is the velocity of the particle, and B is the magnetic field. The cross product (v x B) gives a vector that is perpendicular to both v and B, resulting in a force at right angles to B.

If a Steady Magnetic Field Exerts a Force on a Moving