The North pole is at one end and south pole is at the other end. Where are the poles of a homeshoe magnet? Can you suggest a method to find its pole?
 

Suppose A and B are the poles of the horse shoe magnet. Take a bar magnet and bring its N pole near one pole of the horse shoe magnet. If there is a repulsion between A and N then A is North pole and B is South pole of the horse shoe magnet. If B and N repel each other the B is north and A is south of the horse shoe magnet.