| ⇦ | 
| ⇨ |
A condenser has a capacity 2 μF and is charged to a voltage of 50 V. The energy stored is
Options
(a) 25×10⁵ joule
(b) 25 joule
(c) 25×10 erg
(d) 25×10³ erg
Correct Answer:
25×10³ erg
Explanation:
Energy = (1/2) CV² = (1/2) × (2 × 10⁻⁶) × (50)²
= (2 × 10⁻⁶ × 2500) / 2 = 2500 × 10⁻⁶ J
Energy = 2500 × 10⁻⁶ × 10⁷ = 25 × 10³ erg
Related Questions: - A particle of mass 1 mg has the same wavelength as an electron moving with a velocity
- Two balls of mass m₁ and m₂ are separated from each other by powder charge
- The escape velocity from the earth’s surface is 11 kms⁻¹.A certain planet
- Two electrons are separated by a distance of 1Å. What is the coulomb force between them?
- Light of wavelength 500 nm is incident on a metal with work function 2.28 eV.
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle of mass 1 mg has the same wavelength as an electron moving with a velocity
- Two balls of mass m₁ and m₂ are separated from each other by powder charge
- The escape velocity from the earth’s surface is 11 kms⁻¹.A certain planet
- Two electrons are separated by a distance of 1Å. What is the coulomb force between them?
- Light of wavelength 500 nm is incident on a metal with work function 2.28 eV.
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
Leave a Reply