The north pole of a magnet will exert a repulsive force on another magnet's north pole. This is because the north poles of two magnets both have the same magnetic polarity, which means that they are both oriented in the same direction. When two north poles are brought near each other, the magnetic forces between them cause them to push away from each other.

The strength of the repulsive force between two north poles depends on a number of factors, including the strength of the magnets, the distance between them, and the orientation of their magnetic fields. The closer the magnets are to each other, the stronger the repulsive force will be. The more directly the magnetic fields of the two magnets are aligned, the stronger the repulsive force will be.

The repulsive force between two magnets is an example of magnetic dipole-dipole interaction. A dipole is a pair of opposite poles that are separated by a distance. In the case of a magnet, the poles are the north pole and the south pole. The dipole-dipole interaction between two magnets is a fundamental property of magnetism and is responsible for many of the phenomena associated with magnets, such as attraction and repulsion.