| ⇦ | 
| ⇨ |
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 potential differences across the resistance, capacitance and inductance
- An engine has an efficiency of 1/6. When the temperature of sink is reduced
- The range of voltmeter is 10V and its internal resistance is 50Ω.
- A galvanometer acting as a voltmeter will have
- A wire of length L metre carrying a current I ampere is bent in the form
Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The potential differences across the resistance, capacitance and inductance
- An engine has an efficiency of 1/6. When the temperature of sink is reduced
- The range of voltmeter is 10V and its internal resistance is 50Ω.
- A galvanometer acting as a voltmeter will have
- A wire of length L metre carrying a current I ampere is bent in the form
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