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Magnetic flux φ (in weber) linked with a closed circuit of resistance 10 Ω varies with time t (in sec) as φ=5t²-4t+1. The induced e.m.f. in the circuit at 0.2 sec is
Options
(a) 0.4 volt
(b) 2.0 volt
(c) (-0.4 volt)
(d) (-2.0 volt)
Correct Answer:
2.0 volt
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
- Hard X-rays for the study of fractures in bones should have a minimum wavelength
- A toroid having 200 turns carries a current of 1 A. The average radius of the toroid
- If the series limit of Lyman series for hydrogen atom is equal to the series limit
- A train of mass 2x 10⁵ kg has a constant speed of 20 m/s up a hill inclined
- Two identical long conducting wires AOB and COD are placed at right angle
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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