Capacitor Energy Calculator

Calculate energy storage in capacitors using various methods. Analyze charge, voltage, energy density, and power delivery for capacitor energy storage applications.

Capacitor Energy Storage

E = ½CV²
E = ½QV
E = Q²/(2C)
+
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Calculation Method

Capacitance & Voltage (E = ½CV²)

µF
V
ms

About Capacitor Energy Storage

Capacitors store energy in the electric field between their plates. The amount of energy stored depends on the capacitance and the voltage across the capacitor.

Key Concepts:

  • Energy Storage: Energy is stored in the electric field
  • Voltage Dependence: Energy increases with the square of voltage
  • Rapid Discharge: Can deliver energy very quickly
  • Energy Density: Energy per unit volume or mass

Applications:

  • Flash Photography: High energy, rapid discharge
  • Power Backup: Temporary power during outages
  • Motor Starting: High current pulses for motor startup
  • Energy Harvesting: Store energy from renewable sources

Safety Considerations:

  • High voltage capacitors can be dangerous
  • Always discharge capacitors before handling
  • Use appropriate safety equipment
  • Be aware of stored energy levels