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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 respective speeds of the molecules are 1,2,3,4 and 5 km/s.
- A particle of mass 100g tied to a string is rotated along a circle of radius 0.5 m
- A neutron moving with velocity v collides with a stationary particle
- A nucleus of mass number 220, initially at rest, emits an α-particle. If the Q-value
- A capacitor of 10 µF charged upto 250 volt is connected in parallel with another
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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