Question

in bar magnet , magnetic field north to south ? why give proper resion.

Answer 1

The magnetic fields of one magnet also exert a magnetic force on other magnets. Take two magnets and place them next to each other. When unlike poles, i.e. the north and the south poles of two magnets are placed close to each other, the magnetic field lines link, causing the magnets to attract each other.

Answer 2

In bar magnet, the magetic field is from north to south pole.

Since magnetic field lines are the path taken by a hypothetical North Pole when it is in range of a magnetic field of a magnet, it is clear that the direction of hypothetical North Pole would be from North Pole to South Pole of a magnet not even outside the magnet but inside the magnet too, because North Pole of magnet will repel the hypothetical North Pole inside and outside the magnet and would be attracted by the South Pole of the magnet.



However inside the magnet the magnetic field is from south pole to north pole