The magnetic field produced by an electric charge at rest relative to the observer
A) must be zero.
B) may be zero or nonzero.
C) must be nonzero.
D) A magnetic field cannot be produced by an electric charge.

Question

Quizplus · Accepted Answer

A magnetic field is produced by moving electric charges. When an electric charge is at rest relative to an observer, it does not produce a magnetic field; instead, it produces an electric field.

The Magnetic Field Produced by an Electric Charge at Rest