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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
Related Questions: - A 2 kg mass starts from rest on an inclined smooth surface with inclination
- Three cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel
- If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
- The displacement of a particle along the x-axis is given by x = a sin² ?t
- Which of the following pairs is wrong
Topics: Electromagnetic Induction
(76)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A 2 kg mass starts from rest on an inclined smooth surface with inclination
- Three cells, each of e.m.f 1.5 V and internal resistance 1 ohm are connected in parallel
- If two bodies are projected at 30⁰ and 60⁰ respectively with the same velocity, then
- The displacement of a particle along the x-axis is given by x = a sin² ?t
- Which of the following pairs is wrong
Topics: Electromagnetic Induction (76)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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