[6]
In which direction the pointed needle of the compass indicates when it is free to rotate?

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East

South-east

North

North-west

answer is C.

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Detailed Solution

The pointed needle of the compass indicates the North direction when it is free to rotate.
A magnet, when freely suspended, orients itself in the north-south direction. In a compass, the north pole of the magnetic needle is kept pointed and sharp to know the direction. Therefore, it always indicates the North direction. It happens because our earth behaves like a magnet, and the south pole of the earth’s magnet is situated in the geographic north. So, a suspended magnet’s north pole is attracted to the south pole of the earth’s magnet, and hence it points towards the geographic north direction.

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