67 relations: Alternating current, Aluminium-conductor steel-reinforced cable, American wire gauge, Angular frequency, Arc welding, Bessel function, Busbar, Carbon nanotube, Complex number, Copper loss, Counter-electromotive force, Current density, Direct current, E (mathematical constant), Eddy current, Electric power transmission, Electrical cable, Electrical conductor, Electrical impedance, Electrical reactance, Electrical resistance and conductance, Electrical resistivity and conductivity, Electromagnetic induction, Electromagnetic radiation, Electron, Electroplating, Exponential decay, Ferromagnetism, Frederick Terman, Frequency, German language, Gold, Group delay and phase delay, Hertz, Horace Lamb, Inductance, Induction cooking, Induction heating, Lamination, Lead, Litz wire, Magnetic Reynolds number, Magnetism, Micrometre, Microwave, Oliver Heaviside, Overhead power line, Penetration depth, Permeability (electromagnetism), Permittivity, ..., Phasor, Plasma oscillation, Proximity effect (electromagnetism), Radio, Silver, Snell's law, Speed of light, Stainless steel, Transformer, Vacuum, Vacuum permeability, Vacuum permittivity, Very high frequency, Wavelength, Wavenumber, Welding, 5G. Expand index (17 more) »

## Alternating current

Alternating current (AC) is an electric current which periodically reverses direction, in contrast to direct current (DC) which flows only in one direction.

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## Aluminium-conductor steel-reinforced cable

Aluminium conductor steel-reinforced cable (ACSR) is a type of high-capacity, high-strength stranded conductor typically used in overhead power lines.

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## American wire gauge

American wire gauge (AWG), also known as the Brown & Sharpe wire gauge, is a logarithmic stepped standardized wire gauge system used since 1857 predominantly in North America for the diameters of round, solid, nonferrous, electrically conducting wire.

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## Angular frequency

In physics, angular frequency ω (also referred to by the terms angular speed, radial frequency, circular frequency, orbital frequency, radian frequency, and pulsatance) is a scalar measure of rotation rate.

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## Arc welding

Arc welding is a process that is used to join metal to metal by using electricity to create enough heat to melt metal, and the melted metals when cool result in a binding of the metals.

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## Bessel function

Bessel functions, first defined by the mathematician Daniel Bernoulli and then generalized by Friedrich Bessel, are the canonical solutions of Bessel's differential equation for an arbitrary complex number, the order of the Bessel function.

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## Busbar

In electric power distribution, a busbar (also bus bar, and sometimes misspelled as buss bar or bussbar) is a metallic strip or bar, typically housed inside switchgear, panel boards, and busway enclosures for local high current power distribution.

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## Carbon nanotube

Carbon nanotubes (CNTs) are allotropes of carbon with a cylindrical nanostructure.

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## Complex number

A complex number is a number that can be expressed in the form, where and are real numbers, and is a solution of the equation.

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## Copper loss

Copper loss is the term often given to heat produced by electrical currents in the conductors of transformer windings, or other electrical devices.

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## Counter-electromotive force

Counter-electromotive force (abbreviated counter EMF or simply CEMF),Graf, "counterelectromotive force", Dictionary of Electronics also known as back electromotive force (or back EMF), is the electromotive force or "voltage" that opposes the change in current which induced it.

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## Current density

In electromagnetism, current density is the electric current per unit area of cross section.

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## Direct current

Direct current (DC) is the unidirectional flow of electric charge.

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## E (mathematical constant)

The number is a mathematical constant, approximately equal to 2.71828, which appears in many different settings throughout mathematics.

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## Eddy current

Eddy currents (also called Foucault currents) are loops of electrical current induced within conductors by a changing magnetic field in the conductor due to Faraday's law of induction.

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## Electric power transmission

Electric power transmission is the bulk movement of electrical energy from a generating site, such as a power plant, to an electrical substation.

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## Electrical cable

An electrical cable is an assembly of one or more wires running side by side or bundled, which is used to carry electric current.

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## Electrical conductor

In physics and electrical engineering, a conductor is an object or type of material that allows the flow of an electrical current in one or more directions.

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## Electrical impedance

Electrical impedance is the measure of the opposition that a circuit presents to a current when a voltage is applied.

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## Electrical reactance

In electrical and electronic systems, reactance is the opposition of a circuit element to a change in current or voltage, due to that element's inductance or capacitance.

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## Electrical resistance and conductance

The electrical resistance of an electrical conductor is a measure of the difficulty to pass an electric current through that conductor.

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## Electrical resistivity and conductivity

Electrical resistivity (also known as resistivity, specific electrical resistance, or volume resistivity) is a fundamental property that quantifies how strongly a given material opposes the flow of electric current.

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## Electromagnetic induction

Electromagnetic or magnetic induction is the production of an electromotive force (i.e., voltage) across an electrical conductor in a changing magnetic field.

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## Electromagnetic radiation

In physics, electromagnetic radiation (EM radiation or EMR) refers to the waves (or their quanta, photons) of the electromagnetic field, propagating (radiating) through space-time, carrying electromagnetic radiant energy.

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## Electron

The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.

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## Electroplating

Electroplating is a process that uses an electric current to reduce dissolved metal cations so that they form a thin coherent metal coating on an electrode.

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## Exponential decay

A quantity is subject to exponential decay if it decreases at a rate proportional to its current value.

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## Ferromagnetism

Ferromagnetism is the basic mechanism by which certain materials (such as iron) form permanent magnets, or are attracted to magnets.

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## Frederick Terman

Frederick Emmons Terman (June 7, 1900 – December 19, 1982) was an American professor and academic administrator.

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## Frequency

Frequency is the number of occurrences of a repeating event per unit of time.

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## German language

German (Deutsch) is a West Germanic language that is mainly spoken in Central Europe.

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## Gold

Gold is a chemical element with symbol Au (from aurum) and atomic number 79, making it one of the higher atomic number elements that occur naturally.

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## Group delay and phase delay

In signal processing, group delay is the time delay of the amplitude envelopes of the various sinusoidal components of a signal through a device under test, and is a function of frequency for each component.

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## Hertz

The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.

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## Horace Lamb

Sir Horace Lamb (27 November 1849 – 4 December 1934)R.

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## Inductance

In electromagnetism and electronics, inductance is the property of an electrical conductor by which a change in electric current through it induces an electromotive force (voltage) in the conductor.

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## Induction cooking

Induction cooking heats a cooking vessel by magnetic induction, instead of by thermal conduction from a flame, or an electrical heating element.

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## Induction heating

Induction heating is the process of heating an electrically conducting object (usually a metal) by electromagnetic induction, through heat generated in the object by eddy currents.

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## Lamination

Lamination is the technique of manufacturing a material in multiple layers, so that the composite material achieves improved strength, stability, sound insulation, appearance or other properties from the use of differing materials.

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## Lead

Lead is a chemical element with symbol Pb (from the Latin plumbum) and atomic number 82.

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## Litz wire

Litz wire is a type of specialized multistrand wire or cable used in electronics to carry alternating current (AC) at radio frequencies.

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## Magnetic Reynolds number

The magnetic Reynolds number (Rm) is the magnetic analogue of the Reynolds number, a fundamental dimensionless group that occurs in magnetohydrodynamics.

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## Magnetism

Magnetism is a class of physical phenomena that are mediated by magnetic fields.

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## Micrometre

The micrometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: μm) or micrometer (American spelling), also commonly known as a micron, is an SI derived unit of length equaling (SI standard prefix "micro-".

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## Microwave

Microwaves are a form of electromagnetic radiation with wavelengths ranging from one meter to one millimeter; with frequencies between and.

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## Oliver Heaviside

Oliver Heaviside FRS (18 May 1850 – 3 February 1925) was an English self-taught electrical engineer, mathematician, and physicist who adapted complex numbers to the study of electrical circuits, invented mathematical techniques for the solution of differential equations (equivalent to Laplace transforms), reformulated Maxwell's field equations in terms of electric and magnetic forces and energy flux, and independently co-formulated vector analysis.

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## Overhead power line

An overhead power line is a structure used in electric power transmission and distribution to transmit electrical energy along large distances.

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## Penetration depth

Penetration depth is a measure of how deep light or any electromagnetic radiation can penetrate into a material.

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## Permeability (electromagnetism)

In electromagnetism, permeability is the measure of the ability of a material to support the formation of a magnetic field within itself.

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## Permittivity

In electromagnetism, absolute permittivity, often simply called permittivity, usually denoted by the Greek letter ε (epsilon), is the measure of resistance that is encountered when forming an electric field in a particular medium.

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## Phasor

In physics and engineering, a phasor (a portmanteau of phase vector), is a complex number representing a sinusoidal function whose amplitude (A), angular frequency (ω), and initial phase (θ) are time-invariant.

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## Plasma oscillation

Plasma oscillations, also known as Langmuir waves (after Irving Langmuir), are rapid oscillations of the electron density in conducting media such as plasmas or metals in the ultraviolet region.

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## Proximity effect (electromagnetism)

In a conductor carrying alternating current, if currents are flowing through one or more other nearby conductors, such as within a closely wound coil of wire, the distribution of current within the first conductor will be constrained to smaller regions.

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## Radio

Radio is the technology of using radio waves to carry information, such as sound, by systematically modulating properties of electromagnetic energy waves transmitted through space, such as their amplitude, frequency, phase, or pulse width.

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## Silver

Silver is a chemical element with symbol Ag (from the Latin argentum, derived from the Proto-Indo-European ''h₂erǵ'': "shiny" or "white") and atomic number 47.

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## Snell's law

Snell's law (also known as Snell–Descartes law and the law of refraction) is a formula used to describe the relationship between the angles of incidence and refraction, when referring to light or other waves passing through a boundary between two different isotropic media, such as water, glass, or air.

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## Speed of light

The speed of light in vacuum, commonly denoted, is a universal physical constant important in many areas of physics.

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## Stainless steel

In metallurgy, stainless steel, also known as inox steel or inox from French inoxydable (inoxidizable), is a steel alloy with a minimum of 10.5% chromium content by mass.

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## Transformer

A transformer is a static electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

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## Vacuum

Vacuum is space devoid of matter.

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## Vacuum permeability

The physical constant μ0, (pronounced "mu naught" or "mu zero"), commonly called the vacuum permeability, permeability of free space, permeability of vacuum, or magnetic constant, is an ideal, (baseline) physical constant, which is the value of magnetic permeability in a classical vacuum.

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## Vacuum permittivity

The physical constant (pronounced as "epsilon nought"), commonly called the vacuum permittivity, permittivity of free space or electric constant, is an ideal, (baseline) physical constant, which is the value of the absolute dielectric permittivity of classical vacuum.

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## Very high frequency

Very high frequency (VHF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten to one meter.

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## Wavelength

In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.

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## Wavenumber

In the physical sciences, the wavenumber (also wave number or repetency) is the spatial frequency of a wave, measured in cycles per unit distance or radians per unit distance.

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## Welding

Welding is a fabrication or sculptural process that joins materials, usually metals or thermoplastics, by causing fusion, which is distinct from lower temperature metal-joining techniques such as brazing and soldering, which do not melt the base metal.

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## 5G

5G is a marketing term for some new mobile technologies.

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## Redirects here:

Classical skin depth, Skin Depth, Skin Effect, Skin depth, Skin depth effect, Skin effect (electricity), Skindepth.

## References

[1] https://en.wikipedia.org/wiki/Skin_effect