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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
- If F⃗ is the force acting on a particle having position vector r⃗ and ? ⃗ be the torque
- The decay constant of a radio isotope is λ. If A₁ and A₂ are its activities at time
- Colours appear on a thin soap film and soap bubbles due to the phenomenon of
- The acceleration due to gravity becomes (g/2) where g=acceleration due to gravity
- The dimensions of pressure are equal to those of
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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