1. What is Capacitor Energy?

The energy stored in a capacitor is the electric potential energy held in the electric field between the capacitor plates. It's an important parameter in power electronics and circuit design.

2. How Does the Calculator Work?

The calculator uses the capacitor energy equation:

Where:

• \( E \) — Energy stored in joules
• \( C \) — Capacitance in farads
• \( V \) — Voltage across the capacitor in volts

Explanation: The energy stored is proportional to the capacitance and the square of the voltage.

3. Importance of Energy Calculation

Details: Knowing the stored energy is crucial for safety (high-energy capacitors can be dangerous), circuit design, and understanding power delivery capabilities.

4. Using the Calculator

Tips: Enter capacitance in farads (F) and voltage in volts (V). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between energy and power in capacitors?
A: Energy is the total stored capacity (joules), while power is the rate of energy transfer (watts).

Q2: How does energy scale with voltage?
A: Energy increases with the square of voltage - doubling voltage quadruples the stored energy.

Q3: What are typical capacitor energy values?
A: Small capacitors store microjoules, while large power capacitors can store hundreds of joules.

Q4: Is all stored energy usable?
A: No, practical circuits can't extract all stored energy due to internal resistance and other losses.

Q5: How does this relate to supercapacitors?
A: Supercapacitors use the same energy equation but have much higher capacitance values.