电容储能计算器 — 公式

Energy in a Capacitor

A charged capacitor stores energy in its electric field.

Formula

E = (1/2) * C * V²

This energy is released when the capacitor discharges. Doubling the voltage quadruples the stored energy.

计算示例

A 1000 μF capacitor charged to 12 V.

  1. E = 0.5 * C * V²
  2. E = 0.5 * 1000e-6 * 12²
  3. E = 0.5 * 0.001 * 144
  4. E = 0.072 J = 72 mJ