What is the SI unit of inductance?
Inductance or helix of wire. The term "inductance" was coined by Oliver Heaviside in 1886. It is customary to use the symbol formula_1 for inductance, in honour of the physicist Heinrich Lenz. In the SI system, the unit of inductance is the henry ("H"), which is the amount of inductance which causes a voltage of 1 volt when the current is changing at a rate of one ampere per second. It is named for Joseph Henry, who discovered inductance independently of Faraday. Electric circuits which are located close together, so the magnetic field created by the current in one passes through
Inductance Neglecting resistive losses, the energy formula_23 (measured in joules, in SI) stored by an inductance with a current formula_30 through it is equal to the amount of work required to establish the current through the inductance from zero, and therefore the magnetic field. This is given by: If the inductance formula_32 is constant over the current range, the stored energy is So therefore inductance is also proportional to how much energy is stored in the magnetic field for a given current. This energy is stored as long as the current remains constant. If the current decreases, the magnetic field will