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A toroid of mean radius ' a ' , cross section radius ' r ' and total number of turns N. It carries a current ' i '. The torque experienced by the toroid if a uniform magnetic field of strength B is applied :
  • a)
    is zero
  • b)
    is B i N πr2
  • c)
    is B i N πa2
  • d)
    depends on the direction of magnetic field.
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A toroid of mean radius a , cross section radius r and total numbe...
The resultant magnetic dipole moment of toroid is zero. of small parts of toroid turn along a circle and hence there resultant is zero.
∴ Torque acting on it is zero. 
Community Answer
A toroid of mean radius a , cross section radius r and total numbe...
The correct opt: A
In toroid magnetic field is present only inside the body with no magnetic field outside the body hence magnetic moment M=0 so it will not be affected by any other magnetic field hence torque experienced by toroid will be 0.

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A toroid of mean radius a , cross section radius r and total number of turns N. It carries a current i . The torque experienced by the toroid if a uniform magnetic field of strength B is applied :a)is zerob)is B i Nπr2c)is B i Nπa2d)depends on the direction of magnetic field.Correct answer is option 'A'. Can you explain this answer?
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A toroid of mean radius a , cross section radius r and total number of turns N. It carries a current i . The torque experienced by the toroid if a uniform magnetic field of strength B is applied :a)is zerob)is B i Nπr2c)is B i Nπa2d)depends on the direction of magnetic field.Correct answer is option 'A'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about A toroid of mean radius a , cross section radius r and total number of turns N. It carries a current i . The torque experienced by the toroid if a uniform magnetic field of strength B is applied :a)is zerob)is B i Nπr2c)is B i Nπa2d)depends on the direction of magnetic field.Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A toroid of mean radius a , cross section radius r and total number of turns N. It carries a current i . The torque experienced by the toroid if a uniform magnetic field of strength B is applied :a)is zerob)is B i Nπr2c)is B i Nπa2d)depends on the direction of magnetic field.Correct answer is option 'A'. Can you explain this answer?.
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