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प्रश्न
Why is a magnetic needle used in a compass?
लघु उत्तरीय
उत्तर
The Earth behaves as a magnet with its magnetic South Pole coinciding with the geographic North Pole and magnetic North Pole coinciding with the geographic South Pole. Thus, in a compass, a magnetic needle is used to show the geographic north direction by aligning itself in the magnetic south pole of the Earth.
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Finding Directions with a Magnet
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