Equations
Energy stored in a capacitor
Electricity and magnetism · id capacitor_energy
U = \frac{1}{2} C V^2
| Symbol | Quantity | Unit | Meaning | Usual range |
|---|---|---|---|---|
U | stored energy | J | Energy stored in the electric field | 0 to 1e+09 |
C | capacitance | F | Capacitance | 1e-15 to 10 |
V | voltage | V | Voltage across the capacitor | 0 to 1e+06 |
Assumptions
- Ideal capacitor
Valid when
- No extra conditions.
Found by
Questions with these words retrieve this equation: capacitor, energy, flash, defibrillator, stored energy, capacitance.
Source
OpenStax University Physics Volume 2, Chapter 8 (reference; entry written by the project). License: MIT. Entry confidence: 0.99.