A horseshoe magnet and a bar magnet are made of the same amounts of the same kind of material. Why is the horseshoe magnet stronger than the bar magnet? A. The horseshoe magnet has less mass. B. The horseshoe magnet is longer. C. The poles of the horseshoe magnet are closer together. D. The horseshoe magnet has more poles.
C. The poles of the horseshoe magnet are closer together. A bar magnet has its magnetic poles at two ends of it, such that the magnetic field created by these magnets has a longer path. Compared to this, in a horseshoe magnet, both of its poles are very close together, causing the magnetic field between the two opposite poles being very strong. Magnitude of magnetic force/field is inversely proportion to the distance, hence smaller the distance between poles in horseshoe magnet, stronger is the magnetic force