The self induced e.m.f. in a 0.1 H coil when the current in it is changing

⇦

⇨

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:

1. Three capacitors each of capacitance C and of breakdown voltage V are joined in series
2. A series combination of n₁ capacitors, each of value C₁, is charged by a source
3. When volume of a system is increased two times and temperature is decreased
4. A single slit Fraunhogger diffraction pattern is formed with white light.
5. The wavelength of the matter wave is independent of

Topics: Electromagnetic Induction (76)
Subject: Physics (2479)

---

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

---

Share this page with your friends