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A very small circular loop of radius a is initially (at t=0) coplanar and concentric with a much larger fixed circular loop of radius b. A constant current I flows in the larger loop. The smaller loop is rotated with a constant angular speed ω about the common diameter. The emf induced in the smaller loop as a function of time t is
Options
(a) πa²μ₀I/2b ω cos ωt
(b) πa²μ₀I/2b ω sin ω²t²
(c) πa²μ₀I/2b ω sin ωt
(d) πa²μ₀I/2b ω sin² ωt
Correct Answer:
πa²μ₀I/2b ω sin ωt
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A coil of N turns and mean cross-sectional area A is rotating with uniform angular
- Two capacitors of 10pF and 20pF are connected to 200V and 100V sources, respectively.
- A step down transformer is used on a 1000 V line to deliver 20 A at 120 V
- A potentiometer wire of length 100cm has a resistance of 10Ω. It is connected in series
- Photons of energy 6 eV are incident on a metal surface whose work function is 4 eV.
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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