A capacitor is charged to 200 volt. It has a charge of 0.1 coulomb.

⇦

⇨

A capacitor is charged to 200 volt. It has a charge of 0.1 coulomb. When it is discharged, energy liberated will be

Options

(a) 1 J
(b) 4 J
(c) 10 J
(d) 20 J

Correct Answer:

10 J

Explanation:

Energy of capacitor = (1/2) QV

= (1/2) × 0.1 × 200 = 10 J

Related Questions:

1. An air bubble in a glass slab with refractive index 1.5 (near normal incidence)
2. The masses of three wires of copper are in the ratio 1:3:5 and lengths
3. The internal energy change in a system that has absorbed 2 kcals of heat
4. A body travelling along a straight line traversed one-third of the total distance
5. For photoelectric emission from certain metal the cut-off frequency is v

Topics: Electrostatics (146)
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