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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.
Related Questions: - A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH
- In refraction, light waves are bent on passing from one medium to the second medium
- When two identical capacitors are in series, they have 3 μF capacitance
- In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH
- In refraction, light waves are bent on passing from one medium to the second medium
- When two identical capacitors are in series, they have 3 μF capacitance
- In a coil having e.m.f. of 8 V induced for 0.05 s. The value of current changes
- One way in which the operation of a n-p-n transistor differs from that of a p-n-p
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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