串联电容计算器
计算串联电容器组的等效电容。
µF
V
储存能量
0.3125 J
Stored Energy (mJ)312.50 mJ
Stored Energy vs Capacitance
公式
## Capacitor Energy Storage **E = 0.5 x C x V^2** Energy scales with the square of voltage, so doubling voltage quadruples energy.
计算示例
1000 uF capacitor at 25 V.
- 01C = 1000 uF = 0.001 F
- 02E = 0.5 x 0.001 x 25^2 = 0.5 x 0.001 x 625 = 0.3125 J
常见问题
Why does energy depend on V squared?
Each incremental charge requires more work as the voltage across the capacitor increases, leading to the V^2 relationship.
Can capacitors replace batteries?
Supercapacitors can for short-term storage but have much lower energy density than batteries.
Is this energy dangerous?
Even small capacitors at high voltage can deliver a painful or dangerous shock. Always discharge before handling.
学习