Concept in Definition ABC

In the Physical, the inductance will be that property that electrical circuits have by which a electromotive force once there is a variation in the current that passes, either by the own circuit or by another close to him.

The concept of inductance was popularized by the English physicist, electrical engineer, mathematician and radio operator Oliver Heaviside on February 1886, meanwhile, the symbol with which it is distinguished, the letter L capital letter, has tax in homage to German physicist Heinrich Lenz, who also, like Heaviside, made important contributions in the discovery of this property.

And on the other hand, the term is used to refer to the circuit or circuit element that has inductance.

In an inductor or in a coil, inductance will be called the relationship that will be established between the magnetic flux and the intensity of the electric current. Since it is quite complex to measure the flux across a conductor, you can instead measure the flux variations only through the conductor.

voltage which is induced in the conductor in question by the variation of the flux. In this way we will obtain quantities that are plausible to be measured, such as current, voltage and time.

Meanwhile, the inductance will always be positive, except in those electronic circuits specially designed to simulate negative inductances.

As stated in the International System of Measurements, if the flow is expressed in weber (Unit magnetic flux) and the intensity in amp (unit of electrical intensity), the value of the inductance will be in Henry, symbolized by the letter H capital letter and that in the aforementioned system is the unit attributed to electrical inductance.

Practical inductance values ​​range from a few tenths of H for a conductor one millimeter long and up to several tens of thousands of H for those coils made with thousands of turns around ferro-magnetic cores.

Topics in Inductance