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A bar magnet having a magnetic moment of 2 x 104 J T-1 is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 x 104 T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60o from the field is:
  • a)
    12J
  • b)
    6J
  • c)
    2J
  • d)
    0.6J
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A bar magnet having a magnetic moment of 2 x 104 J T-1is free to rotat...
W = MB cos 60o
= 2 x 104 x 6 x 10-4 x 1/2 = 6J
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A bar magnet having a magnetic moment of 2 x 104 J T-1is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 x 104 T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60o from the field is:a)12Jb)6Jc)2Jd)0.6JCorrect answer is option 'B'. Can you explain this answer?
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A bar magnet having a magnetic moment of 2 x 104 J T-1is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 x 104 T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60o from the field is:a)12Jb)6Jc)2Jd)0.6JCorrect answer is option 'B'. Can you explain this answer? for JEE 2024 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A bar magnet having a magnetic moment of 2 x 104 J T-1is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 x 104 T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60o from the field is:a)12Jb)6Jc)2Jd)0.6JCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for JEE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bar magnet having a magnetic moment of 2 x 104 J T-1is free to rotate in a horizontal plane. A horizontal magnetic field B = 6 x 104 T exists in the space. The work done in taking the magnet slowly from a direction parallel to the field to a direction 60o from the field is:a)12Jb)6Jc)2Jd)0.6JCorrect answer is option 'B'. Can you explain this answer?.
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