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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 filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance
- A spherical body of emissivity e=0.6, placed inside a perfectly black body is maintained
- The time period of a mass suspended from a spring is T. If the spring is cut into four
- A particle moving along X-axis has acceleration f,at time t given by f=fₒ(1- t/T)
- Which of the following substances has the highest elasticity?
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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