What are the units of measurement for inductance?

Inductance is a fundamental property of an electrical component that quantifies its ability to store energy in a magnetic field created by the current flowing through it. The standard unit of measurement for inductance is the henry, which is defined as the inductance of a circuit in which a change in current of one ampere per second induces an electromotive force of one volt.

The henry is a derived unit in the International System of Units (SI) and reflects the relationship between voltage, current, and time in the context of inductors within electrical circuits. Millihenrys, while also a unit of inductance, is simply a sub-multiple of henrys, representing one-thousandth of a henry. Therefore, both henrys and millihenrys describe inductance but the primary unit recognized is henries.

Understanding these units is important for both circuit design and analysis, especially when dealing with alternating current (AC) circuits where inductance plays a crucial role in impedance and reactive power considerations.