Which unit is used to measure inductance?

The unit used to measure inductance is the Henry. Inductance is a property of an electrical component, typically a coil or inductor, that describes its ability to store energy in a magnetic field when an electric current passes through it. The Henry is defined as the amount of inductance that will produce an electromotive force (EMF) of one volt when the current through the inductor changes at the rate of one ampere per second.

Understanding inductance is crucial in many applications, including electrical engineering and electronics, as it influences how circuits respond to changes in current, particularly in alternating current (AC) systems. The higher the inductance measured in Henrys, the more capable the inductor is of resisting changes in current flow. Other units mentioned in the options, such as watts (power), ohms (resistance), and volts (voltage), refer to different electrical phenomena and are not appropriate for measuring inductance.