| ⇦ | 
| ⇨ |
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: - Monochromatic light of wavelength 667 nm is produced by a helium neon laser
- Consider a two particle system with particle having masses m₁ and m₂. If the first
- If energy(E), velocity(V) and time(T) are chosen as fundamental quantities,
- An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min
- Periodic time of a satellite revolving above Earth’s surface at a height equal to R,
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Monochromatic light of wavelength 667 nm is produced by a helium neon laser
- Consider a two particle system with particle having masses m₁ and m₂. If the first
- If energy(E), velocity(V) and time(T) are chosen as fundamental quantities,
- An automobile engine develops 100 kW when rotating at a speed of 1800 rev/min
- Periodic time of a satellite revolving above Earth’s surface at a height equal to R,
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