A bar magnet having a magnetic moment of 2 10 JT is free to rotate in...
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A bar magnet having a magnetic moment of 2 10 JT is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 10 T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60 from the field is (a) 12 J (b) 6 J (d) 0.6 J (c) 2 J A bar magnet having a magnetic moment of 2 10 JT is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 10 T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60 from the field is (a) 12 J (b) 6 J (d) 0.6 J (c) 2 J
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