Energy Stored in a 500 mH Inductor at 0.5 A
A 500 mH inductor carrying 0.5 A stores 62.5 microjoules of energy.
How to use this tool
- Enter inductance (l) and current (i) in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your energy and the full breakdown beneath it.
500 mH inductors at low currents are used in precision measurement circuits and low-frequency band-pass filter designs.
Frequently asked questions
- What happens when you suddenly disconnect an inductor from a circuit?
- The inductor tries to maintain its current, generating a large voltage spike ('inductive kick'). This is why flyback diodes are used across relay coils and motor drivers to protect switching transistors.
- How is inductor energy used in switching power supplies?
- In a buck or boost converter, the inductor stores energy during one switch phase and releases it during the other, allowing efficient voltage conversion.