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A non conducting ring of radius R is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity ω. Charge q is uniformly distributed over its surface.
  • a)
    The magnetic moment of the ring is qωR2/2.
  • b)
    The magnetic field produced at the centre is .
  • c)
    The magnetic field and the area vector are in opposite directions.
  • d)
    The magnetic field produced is uniform at the centre.
Correct answer is option 'A,B,D'. Can you explain this answer?
Most Upvoted Answer
A non conducting ring of radius R is rotating about an axis passing t...
Alternate method. As L = Iω for angular momentum and I = MR2, the charge on element dL of the ring will be,
The current due to the circular motion of this charge will be,
So, the magnetic moment due to current dI will be,
Current produced by the given element:
dl = f x dg
Calculate the magnetic field due to the above element.
At the centre, the direction of the magnetic field is calculated by using the right hand thumb rule and is nearly uniform.
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A non conducting ring of radius R is rotating about an axis passing t...
Alternate method. As L = Iω for angular momentum and I = MR2, the charge on element dL of the ring will be,
The current due to the circular motion of this charge will be,
So, the magnetic moment due to current dI will be,
Current produced by the given element:
dl = f x dg
Calculate the magnetic field due to the above element.
At the centre, the direction of the magnetic field is calculated by using the right hand thumb rule and is nearly uniform.
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A non conducting ring of radius R is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity ω. Charge q is uniformly distributed over its surface.a)The magnetic moment of the ring is qωR2/2.b)The magnetic field produced at the centre is .c)The magnetic field and the area vector are in opposite directions.d)The magnetic field produced is uniform at the centre.Correct answer is option 'A,B,D'. Can you explain this answer?
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A non conducting ring of radius R is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity ω. Charge q is uniformly distributed over its surface.a)The magnetic moment of the ring is qωR2/2.b)The magnetic field produced at the centre is .c)The magnetic field and the area vector are in opposite directions.d)The magnetic field produced is uniform at the centre.Correct answer is option 'A,B,D'. 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 non conducting ring of radius R is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity ω. Charge q is uniformly distributed over its surface.a)The magnetic moment of the ring is qωR2/2.b)The magnetic field produced at the centre is .c)The magnetic field and the area vector are in opposite directions.d)The magnetic field produced is uniform at the centre.Correct answer is option 'A,B,D'. 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 non conducting ring of radius R is rotating about an axis passing through its centre and perpendicular to its plane with an angular velocity ω. Charge q is uniformly distributed over its surface.a)The magnetic moment of the ring is qωR2/2.b)The magnetic field produced at the centre is .c)The magnetic field and the area vector are in opposite directions.d)The magnetic field produced is uniform at the centre.Correct answer is option 'A,B,D'. Can you explain this answer?.
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