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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
- The ratio of the acceleration for a solid sphere(mass m and radius R)rolling down
- The mean free path of electrons in a metal is 4 x 10⁻⁸ m. The electric field
- Two cells when connected in series are balanced on 8m on a potentiometer.
- When two displacements represented by y₁=a sin(?t) are superimposed the motion is
- Two waves represented by following equations are travelling in same medium
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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