This suggests that the Earth itself behaves as a magnet which causes a freely suspended magnet (or magnetic needle) to point always in a particular direction: North and South. The shape of the Earth's magnetic field resembles that of a bar magnet of length one-fifth of the Earth's diameter buried at its center. read more
A freely suspended magnet always point in North direction because earth itself behaves as a magnet. The shape of earth's magnetic field resembles that of imaginary bar magnet of length 1/5th of earth's diameter buried at its centre. read more
A freely suspended magnet always points in the North-South direction even in the absence of any other magnet. This suggests that the Earth itself behaves as a magnet which causes a freely suspended magnet (or magnetic needle) to point always in a particular direction: North and South. read more