Two magnets each of magnetic moment ‘M’ are placed so as to form a cross at right angles to each other. Magnetic moment of the system will be

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M/2

answer is B.

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Detailed Solution

The magnetic moment of each magnet is M i.e.,M1 = M2 = MThe two magnetic moments are perpendicular. Hence net magnetic momentM=M12+M22=2M2=2M.

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