To find out whether both the poles of a magnet are equally strong and whether all magnets are equally strong.
A magnet is a material or object that produces magnetic field. A Magnetic field is responsible for attraction. The materials which get attracted towards a magnet are magnetic such as iron, nickel or cobalt. The materials which are not attracted towards a magnet are non-magnetic. It has two magnetic poles north and south.
There are two magnetic poles that divide a magnet into two halves. These are the two ends of magnet. These ends are called magnetic north pole and magnetic south pole.
From the North pole, magnetic field lines project outside the magnet and also it attracts the South pole of another magnet.
Magnetic field lines end at the South pole outside the magnet and it attracts the North pole of another magnet.
The Law of attraction of magnets states that when a south pole of a magnet is brought close to the north pole of another magnet, they attract each other.
The Law of repulsion of magnets states that when a north pole of a magnet is brought close to the north pole of another magnet, or when a south pole of magnet is brought closer to the south pole of another magnet, they will repel from each other.