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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
- When a mass m is attached to a spring, it normally extends by 0.2 m.
- A polarised light of intensity I₀ is passed through another polariser whose pass axis
- A block of mass 10 kg is moving in X-direction with a constant speed of 10 ms⁻¹
- The threshold wavelength for photoelectric emission from a material is 4800 Å.
- A particle of mass 1mg has the same wavelength as an electron moving with a velocity
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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