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An electronic component designed to add inductance to a circuit is called an inductor. It typically consists of a coil or helix of wire. The term inductance was coined by Oliver Heaviside in May 1884, as a convenient way to refer to "coefficient of self-induction".
In general, the relation between the emf in a wire loop encircling a surface Σ, and the electric field E in the wire is given by = where dℓ is an element of contour of the surface Σ, combining this with the definition of flux =, we can write the integral form of the Maxwell–Faraday equation =
The definition of surface integral relies on splitting the surface Σ into small surface elements. Each element is associated with a vector dA of magnitude equal to the area of the element and with direction normal to the element and pointing "outward" (with respect to the orientation of the surface).
The inductance of a circuit depends on the geometry of the current path as well as the magnetic permeability of nearby materials. An inductor is a component consisting of a wire or other conductor shaped to increase the magnetic flux through the circuit, usually in the shape of a coil or helix , with two terminals .
The process of joining metals using a low melting point filler metal; a critical process in the assembly of most electronic devices. solenoid A coil of wire used to create a magnetic field; often a device with a ferromagnetic plunger that moves when the coil is energized. solid state Electronics that relies on current flow through crystalline ...
k is the coupling coefficient, Le1 and Le2 is the leakage inductance, M1 (M2) is the mutual inductance. An inductively coupled transponder consists of a solid state transceiver chip connected to a large coil that functions as an antenna. When brought within the oscillating magnetic field of a reader unit, the transceiver is powered up by energy ...
This induced emf is represented by the parameter known as inductance. It is customary to use the symbol L 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 ...
Fig.1 Transmission line. The distributed-element model applied to a transmission line. In electrical engineering, the distributed-element model or transmission-line model of electrical circuits assumes that the attributes of the circuit (resistance, capacitance, and inductance) are distributed continuously throughout the material of the circuit.