A freely suspended magnet always point in the north-south direction, even in the absence of any other magnet. This suggests that the earth itself behave as a magnet, which causes a freely suspended magnet to point always in a particular direction;north and south. The shape of the earth's magnetic field, that of an imaginary bar magnet of length one-fifth of earth's diameter buried at its centre. The earth behaves as a magnet tilted 11.5 from the spin axis of the earth.
2:-Animal navigate earth magnetic field during earthquake and save our life.
3;-Poles are used by human for navigation
Point;-The north magnetic pole is shifting from Canada into Siberia and recently crossed the international date line. It is shifting almost century by century mean atomic clock of satellite change to suitable navigation by satellite position.
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Why earth has a magnetic field?
Earth magnetic is produced by convection currents of molten iron and nickel of earth. These current hold a stream of charged particles and generate a magnetic field. Almost like magnet inside. |
Use of magnets in earth
1:-Protect earth2:-Animal navigate earth magnetic field during earthquake and save our life.
3;-Poles are used by human for navigation
Point;-The north magnetic pole is shifting from Canada into Siberia and recently crossed the international date line. It is shifting almost century by century mean atomic clock of satellite change to suitable navigation by satellite position.
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