Inductance is the tendency of an electrical conductor to oppose a change in the electric current flowing through it. It is a fundamental parameter in electrical and electronic circuit designs, like resistance and capacitance, and affects all circuits to some degree. Inductance is used in many areas of electrical and electronic systems and circuits, and electronic components that have inductance as their primary parameter may be called by a variety of names, such as coils, inductors, chokes, and transformers.
Inductance is a property of a conductor or circuit, due to its magnetic field, which tends to oppose changes in current through the circuit. An inductor is an electrical component consisting of a conductor shaped to increase the magnetic flux, to add inductance to a circuit. Typically, it consists of a wire wound into a coil or helix, and a coiled wire has a higher inductance than a straight wire. The unit of inductance in the SI system is the henry (H), named after Joseph Henry, which is the amount of inductance that generates a voltage of one volt when the current is changing at a rate of one ampere per second.
