An electron moving along the +x-axis enters a magnetic field.If the electron experiences a magnetic deflection in the -y direction,then the magnetic field must have a component
A)along the +z-axis.
B)along the -z-axis.
C)along the -x-axis.
D)along the +y-axis.
E)along the -y-axis.

Question

Quizplus · Accepted Answer

The right-hand rule for magnetic force indicates that for a negative charge (like an electron) moving along the +x-axis to experience a force in the -y direction, the magnetic field must be along the -z-axis.

An Electron Moving Along the +X-Axis Enters a Magnetic Field