| ⇦ | 
| ⇨ |
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: - The temperature at which the vapour pressure of a liquid becomes equal to the external
- Heat is not being exchanged in a body. If its internal energy is increased, then
- A coin of mass m and radius r having moment of inertia I about the axis passes
- Temperature is a measurement of coldness or hotness of an object.
- A particle covers half of its total distance with speed v1 and the rest half distance
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The temperature at which the vapour pressure of a liquid becomes equal to the external
- Heat is not being exchanged in a body. If its internal energy is increased, then
- A coin of mass m and radius r having moment of inertia I about the axis passes
- Temperature is a measurement of coldness or hotness of an object.
- A particle covers half of its total distance with speed v1 and the rest half distance
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