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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
- If the feedback voltage is increased in a negative feedback amplifier, then
- In an inductor when current changes from 2 A to 18 A in 0.05 sec, the e.m.f. induced
- A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined
- Electric potential at any point is V= -5x +3y + √(15) z. Then the magnitude of electric
- When temperature of an ideal gas is increased from 27⁰C to 227⁰C,
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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