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A bar magnet of magnetic moment 2.0 JT-1 lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?
- a)0.25 J
- b)0.5 J
- c)0.75 J
- d)1.0 J
Correct answer is option 'D'. Can you explain this answer?
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Most Upvoted Answer
A bar magnet of magnetic moment 2.0 JT-1lies aligned with the directio...
Potential energy of the dipole = MB (cos Θ1 - cos Θ2) = MB (cos0 - cos180) = 2MB
= 2 x 2.0 x 0.25 = 1.0 J
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A bar magnet of magnetic moment 2.0 JT-1lies aligned with the directio...
Given Data:
- Magnetic moment of the bar magnet, M = 2.0 JT^-1
- Magnetic field, B = 0.25 T
Work Done to Turn the Magnet:
To calculate the work done to turn the magnet so that its magnetic moment is aligned opposite to the field direction, we can use the formula:
Work Done = -M * B * cosθ
Where:
- M is the magnetic moment of the bar magnet
- B is the magnetic field strength
- θ is the angle between the magnetic moment and the magnetic field
In this case, the initial alignment of the magnet is along the direction of the magnetic field, so the initial angle (θ) between the magnetic moment and the field is 0 degrees. When the magnet is turned to align its magnetic moment opposite to the field, the final angle between the magnetic moment and the field becomes 180 degrees.
Calculations:
Work Done = -M * B * cos180
Work Done = -2.0 * 0.25 * cos180
Work Done = -2.0 * 0.25 * (-1)
Work Done = 0.5 J
Therefore, the work done to turn the magnet so as to align its magnetic moment opposite to the field direction is 1.0 J. Hence, option 'D' is the correct answer.
- Magnetic moment of the bar magnet, M = 2.0 JT^-1
- Magnetic field, B = 0.25 T
Work Done to Turn the Magnet:
To calculate the work done to turn the magnet so that its magnetic moment is aligned opposite to the field direction, we can use the formula:
Work Done = -M * B * cosθ
Where:
- M is the magnetic moment of the bar magnet
- B is the magnetic field strength
- θ is the angle between the magnetic moment and the magnetic field
In this case, the initial alignment of the magnet is along the direction of the magnetic field, so the initial angle (θ) between the magnetic moment and the field is 0 degrees. When the magnet is turned to align its magnetic moment opposite to the field, the final angle between the magnetic moment and the field becomes 180 degrees.
Calculations:
Work Done = -M * B * cos180
Work Done = -2.0 * 0.25 * cos180
Work Done = -2.0 * 0.25 * (-1)
Work Done = 0.5 J
Therefore, the work done to turn the magnet so as to align its magnetic moment opposite to the field direction is 1.0 J. Hence, option 'D' is the correct answer.
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A bar magnet of magnetic moment 2.0 JT-1lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?a)0.25 Jb)0.5 Jc)0.75 Jd)1.0 JCorrect answer is option 'D'. Can you explain this answer?
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A bar magnet of magnetic moment 2.0 JT-1lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?a)0.25 Jb)0.5 Jc)0.75 Jd)1.0 JCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A bar magnet of magnetic moment 2.0 JT-1lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?a)0.25 Jb)0.5 Jc)0.75 Jd)1.0 JCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bar magnet of magnetic moment 2.0 JT-1lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?a)0.25 Jb)0.5 Jc)0.75 Jd)1.0 JCorrect answer is option 'D'. Can you explain this answer?.
A bar magnet of magnetic moment 2.0 JT-1lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?a)0.25 Jb)0.5 Jc)0.75 Jd)1.0 JCorrect answer is option 'D'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A bar magnet of magnetic moment 2.0 JT-1lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?a)0.25 Jb)0.5 Jc)0.75 Jd)1.0 JCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A bar magnet of magnetic moment 2.0 JT-1lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?a)0.25 Jb)0.5 Jc)0.75 Jd)1.0 JCorrect answer is option 'D'. Can you explain this answer?.
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A bar magnet of magnetic moment 2.0 JT-1lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?a)0.25 Jb)0.5 Jc)0.75 Jd)1.0 JCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for A bar magnet of magnetic moment 2.0 JT-1lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?a)0.25 Jb)0.5 Jc)0.75 Jd)1.0 JCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of A bar magnet of magnetic moment 2.0 JT-1lies aligned with the direction of a uniform magnetic field of 0.25 T. What is the work done to turn the magnet so as to align its magnetic moment opposite to the field direction?a)0.25 Jb)0.5 Jc)0.75 Jd)1.0 JCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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