how compass is used
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Compasses are mainly used in navigation to find direction on the earth. This works because the Earth itself has a magnetic field which is similar to that of a bar magnet (see the picture below). The compass needle aligns with the Earth's magnetic field direction and points north-south.
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COMPASS IS A SPECIAL INSTRUMENT USED TO FIND OUT THE DIRECTION AND IS USUALLY USED IN NAVIGATION. COMPASS HAS A NEEDLE WHICH IS MADE OF MAGNET AND THIS SYSTEM WORKS AS THE MAGNETIC FIELD OF THE EARTH WORKS LIKE A BAR MAGNET.
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