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. 1 Wb/m² equal to
2. If a spring of spring constant k stretched by a length x under tension T, the energy
3. The point of suspension λ of a simple pendulum with normal time period T₁ is moving
4. A filament bulb (500W,100V) is to be used in a 230V main supply. When a resistance
5. A hollow sphere of radius 0.1m has a charge of 5×10⁻⁸C. The potential

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