Physics Formula
Capacitor Energy Formula Formula
Calculates the energy stored in a capacitor from capacitance and voltage.
Formula Summary
Capacitor Energy Formula
Calculates the energy stored in a capacitor from capacitance and voltage.
- Category
- Physics
- Equation
- E = ½CV²
- Calculator
- Use Capacitor Energy Formula Calculator →
Equation
E = ½CV²
Variables
- E = stored energy
- C = capacitance
- V = voltage
Units
- Energy: joules (J)
- Capacitance: farads (F)
- Voltage: volts (V)
When To Use This Formula
Use this formula when calculating the electrical energy stored in a capacitor based on its capacitance and voltage.
Rearranged Equations
- C = 2E / V²
- V = √(2E / C)
How to Use This Formula
- Identify the known values from the problem statement.
- Convert all values into compatible units.
- Substitute the values into the equation and calculate the result.
- Check that the final answer has the correct unit and meaning.