Which unit measures inductance?

Inductance is a property of an electrical component that enables it to store energy in a magnetic field when electrical current flows through it. The standard unit of measurement for inductance is the henry, which is defined as the amount of inductance required to induce one volt of electromotive force when the current changes at a rate of one ampere per second. This relationship highlights the henry's direct connection to both the current flowing and the voltage induced, making it the appropriate choice for measuring inductance.

The other units listed relate to different electrical properties: ohms measure resistance, farads measure capacitance (the ability of a component to store an electrical charge), and volts measure electrical potential or voltage. Each of these plays a distinct role in electrical circuits, but the henry specifically quantifies the inductive properties of inductors and other components exhibiting inductance.