Energy Stored in Inductor Calculator Formula
Understand the math behind the energy stored in inductor calculator. Each variable explained with a worked example.
Formulas Used
Stored Energy
energy = 0.5 * inductance * 1e-3 * pow(current, 2)Stored Energy (mJ)
energy_mj = 0.5 * inductance * 1e-3 * pow(current, 2) * 1000Variables
| Variable | Description | Default |
|---|---|---|
inductance | Inductance(mH) | 100 |
current | Current(A) | 2 |
How It Works
Energy in an Inductor
An inductor stores energy in its magnetic field when current flows through it.
Formula
E = (1/2) * L * I²
This energy is released when the current decreases. The magnetic field collapses, driving current through the circuit.
Worked Example
A 100 mH inductor carrying 2 A.
inductance = 100current = 2
- 01E = 0.5 * L * I²
- 02E = 0.5 * 100e-3 * 4
- 03E = 0.5 * 0.4
- 04E = 0.2 J = 200 mJ
Ready to run the numbers?
Open Energy Stored in Inductor Calculator