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Question

Assertion :The ends of a magnet suspended freely point out always along north south direction. Reason: Earth behaves as a huge magnet.

A
Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
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B
Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
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C
Assertion is correct but Reason is incorrect
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D
Both Assertion and Reason are incorrect
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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
When magnet suspended freely then due to earth magnetic field a force act on north and south pole as shown in fig.
Npole facing Spole of earth.
Spole facing Npole of earth.
When magnet south pole push into the coil the left side coil developed south pole and right side north pole. And therefore current flow from right to left. If we want to flow current right to left then south pole have to push away from the coil so that left portion of the coils formed north pole and right portion formed south pole.

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