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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
- A galvanometer has a coil of resistance 100 ohm and gives a full-scale deflection
- A thin wire of resistance 4 ohm is bent to form a circle. The resistance across
- A body is placed in an insulating container at temperature 227⁰C.
- A p-n-p transistor is used in common emitter mode in an amplifier circuit.
- A car moves from X to Y with a uniform speed v(u) and returns to Y with a uniform speed
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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