| ⇦ | 
| ⇨ |
The phase difference between the flux linked with a coil rotating in a uniform magnetic field and induced emf produced in it is
Options
(a) π/2
(b) π/3
(c) (-π/6)
(d) π
Correct Answer:
π/2
Explanation:
The flux ɸ = B.A = |B| |A| cos θ
Also, induced emf, ε = – (dɸ / dt) = (d |B| |A| cos θ) / dt
= – |B| |A| [d cos θ / dt] = |B| |A| sin θ. ω
ε = BA ω cos [θ – (π / 2)]
Related Questions: - An ideal gas is compressed to half its initial volume by means of several processes.
- A spring when stretched by 2mm containing energy 4 J. If it is stretched
- A satellite A of mass m is at a distance r from the centre of earth. Another satellite
- The wavelength of light emitted from second orbit to first orbit in a hydrogen atom is
- The following four wires are made of the same material. Which of these will have
Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An ideal gas is compressed to half its initial volume by means of several processes.
- A spring when stretched by 2mm containing energy 4 J. If it is stretched
- A satellite A of mass m is at a distance r from the centre of earth. Another satellite
- The wavelength of light emitted from second orbit to first orbit in a hydrogen atom is
- The following four wires are made of the same material. Which of these will have
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply