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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 solid body rotates about a stationary axis, so that its angular velocity
- Suppose for some reasons, radius of earth were to shrink by 1% of present value,
- For a given velocity, a projectile has the same range R for two angles of projection.
- The resistance in the two arms of the meter bridge are 5Ω and RΩ, respectively
- In circular coil, when number of turns is doubled and resistance becomes 1/4th
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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