Inductor Energy Storage Calculator
Understanding Inductor Energy Storage
The energy stored in an inductor is proportional to the square of the current flowing through it.
Formula: E = (1/2) L I2, where:
- E: Energy in joules (J)
- L: Inductance in henries (H)
- I: Current in amperes (A)
Example Calculations
Example 1:
Scenario: You have an inductor with an inductance of 10 mH and a current of 2 A. What is the energy stored?
Steps:
- Convert inductance to henries:
- L = 10 mH = 0.01 H
- Apply the formula: E = (1/2) L I2
- E = (1/2) × 0.01 × (2)2
- E = 0.02 J
Result: The energy stored is 0.02 J.
Example 2:
Scenario: You have an inductor with an inductance of 100 µH and a current of 500 mA. What is the energy stored?
Steps:
- Convert inductance and current to base units:
- L = 100 µH = 0.0001 H
- I = 500 mA = 0.5 A
- Apply the formula: E = (1/2) L I2
- E = (1/2) × 0.0001 × (0.5)2
- E = 0.0000125 J
- Convert energy to millijoules: E = 0.0000125 × 1000 = 0.0125 mJ
Result: The energy stored is 0.0125 mJ.