The direction of the net force on a small magnet will be the same if the SG axis is reversed and the effect of the external magnet decreases in the axis direction instead of increasing.

Question

Quizplus · Accepted Answer

The net force on a small magnet is determined by the vector sum of the magnetic forces due to the external magnet and the Earth's magnetic field. If the SG axis is reversed, the direction of the magnetic force due to the external magnet will be reversed, but the direction of the magnetic force due to the Earth's magnetic field will remain the same. Therefore, the direction of the net force will be the same. If the effect of the external magnet decreases in the axis direction instead of increasing, the magnitude of the net force will decrease, but the direction will remain the same.

The Direction of the Net Force on a Small Magnet