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A conducting ring of mass 2 kg and radius 0.5 m is placed on a smooth horizontal plane. The ring carries a current i = 4 A. A horizontal magnetic field B = 10 T is switched on at time t = 0 as shown in the figure. The initial angular acceleration of the ring will be
  • a)
    40π rad s−2
  • b)
    20π rad s−2
  • c)
    5π rad s−2
  • d)
    15π rad s−2
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
A conducting ring of mass 2 kg and radius 0.5 m is placed on a smooth...
τ = Iα
iAB = Iα
(∵ Ring is rotating about its diameter)
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A conducting ring of mass 2 kg and radius 0.5 m is placed on a smooth horizontal plane. The ring carries a current i = 4 A. A horizontal magnetic field B = 10 T is switched on at time t = 0 as shown in the figure. The initial angular acceleration of the ring will bea)40π rad s−2b)20π rad s−2c)5π rad s−2d)15π rad s−2Correct answer is option 'A'. Can you explain this answer?
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A conducting ring of mass 2 kg and radius 0.5 m is placed on a smooth horizontal plane. The ring carries a current i = 4 A. A horizontal magnetic field B = 10 T is switched on at time t = 0 as shown in the figure. The initial angular acceleration of the ring will bea)40π rad s−2b)20π rad s−2c)5π rad s−2d)15π rad s−2Correct answer is option 'A'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about A conducting ring of mass 2 kg and radius 0.5 m is placed on a smooth horizontal plane. The ring carries a current i = 4 A. A horizontal magnetic field B = 10 T is switched on at time t = 0 as shown in the figure. The initial angular acceleration of the ring will bea)40π rad s−2b)20π rad s−2c)5π rad s−2d)15π rad s−2Correct answer is option 'A'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A conducting ring of mass 2 kg and radius 0.5 m is placed on a smooth horizontal plane. The ring carries a current i = 4 A. A horizontal magnetic field B = 10 T is switched on at time t = 0 as shown in the figure. The initial angular acceleration of the ring will bea)40π rad s−2b)20π rad s−2c)5π rad s−2d)15π rad s−2Correct answer is option 'A'. Can you explain this answer?.
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