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The self induced e.m.f. in a 0.1 H coil when the current in it is changing at the rate of 200 amp/sec is
Options
(a) 8×10⁻⁴ V
(b) 8×10⁻⁵ V
(c) 20 V
(d) 125 V
Correct Answer:
20 V
Explanation:
e = – L (dI / dt), Magnitude of e = L (dI / dt) = 0.1 × 200 = 20 V
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Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When an α-particle of mass m moving with velocity ν bombards on a heavy nucleus
- A perfect gas at 27° C is heated at constant pressure to 327° C. If original volume of gas
- A thin wire of resistance 4 ohm is bent to form a circle. The resistance across
- The wave function (in SI unit) for a light wave is given as Ψ(x,t)= 10³ sin π
- A particle of mass M is suited at the centre of a spherical shell of same mass and radius
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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