The lines of magnetic field starts from North and terminates in the South direction outside the magnet and from South to North inside.
Explanation:
The imaginary lines that are drawn to represent the direction and strength of magnetic field is known as magnetic field lines. The magnetic field direction remains "tangent to magnetic field line". These magnetic field lines never intersect (the magnetic field is distinctive at any point).
The density of the lines decreases when they travel from higher permeability area to lower permeability area. All the field lines have same strength. They are closed lines i.e. they always form the closed loops. By this, we can represent that the field flows from North to South Pole from outward.
