Energy Stored In Capacitor
Easyphysics
A capacitor of 10 μF is charged to 100 V. What is the energy stored in it?
Select the correct option:
Solution
Incorrect! Answer:
0.05 J
- Energy Formula: Potential energy stored is U=21CV2.
- Data Conversion:
- C=10 μF=10×10−6 F.
- V=100 V.
- Calculation:
- U=21×(10×10−6)×(100)2
- U=5×10−6×10,000
- U=5×10−2.
- Result: U=0.05 Joules.
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About This Question
- Subject
- physics
- Chapter
- electrostatics
- Topic
- energy stored in capacitor
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
0.05 J
- Energy Formula: Potential energy stored is U=21CV2.
- Data Conversion:
- C=10 μF=10×10−6 F.
- V=100 V.
- Calculation:
- U=21×(10×10−6)×(100)2
- U=5×10−6×10,000
- U=5×10−2.
- Result: U=0.05 Joules.
This easy difficulty physics question is from the chapter electrostatics, covering the topic of energy stored in capacitor. It appeared in the 2025 exam.
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