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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 concave lens of focal length f forms an image which is 1/3 times the size
- The wave described by y = 0.25 sin (10 2πx – 2πt), where x and y are in meters
- A neutron is moving with a velocity u.It collides head on and elastically with an atom
- If R is the radius of the earth and g is the acceleration due to gravity
- A rod of 10 cm length is moving perpendicular to uniform magntic field of intensity
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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