AP Physics 2 Practice Test

The motion stops when the magnetic field created by the separated charges equals the external magnetic field.

The motion stops when the electric field strength created by the separated charge equals the magnetic field strength.

The motion stops when the electric field created by the separated charges creates an equal and opposite force to the magnetic force created by the rod's motion.

The motion stops when the electric potential equals the magnetic field strength.

The motion does not stop. Mobile charge carriers continue to separate as long as the rod remains in motion.