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As such till now there is no proper or valid theory to prove or explain the cause of earth's magnetic field.

A bar magnet or a magnetic compass alligns itself in the direction of earth's magnetic field. This process happens as south pole of magnet alligns itself to north pole of earth n vice versa true north pole is southpole of magnet.

Exact location of places can be done by calculating the magnetic flux density n various other factor . . . . . .

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14y ago

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