Class 12th Physics | Answer Key 2025 | CBSE Board | PYQ 2025 | Paper Code 55-5-3 | Set 3 | Q24

The magnetic moment (5J/T) of a bar magnet points along a uniform magnetic field 0.4 T. (a) Calculate (i) the potential energy of the bar magnet, and (ii) the work done in turning the magnet by 180°. (b) In which case is the potential energy of the magnet minimum?

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Class 12 Physics PYQ 2025