A bar magnet of magnetic moment 1.5 J/T lies aligned with the direction of a uniform magnetic field of 0.22 T. What is the amount of work required by an external torque to turn the magnet so as to align its magnetic moment opposite to the field direction?
  • a)
    0.66J
  • b)
    0.76J nC
  • c)
    0.86J
  • d)
    0.56J
Correct answer is option 'A'. Can you explain this answer?

Class 12 Question

By Jatin Yadav · 3 weeks ago ·Class 12

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