In the early 20th Century, it was found in myriad applications including saxophone mouthpieces, whistles, cameras, solid-body electric guitars, telephone housings and handsets, early machine guns, pistol grips, and appliance casings.

Simon Frith identifies the origins of the power ballad in the emotional singing of soul artists, particularly Ray Charles and the adaptation of this style by figures such as Eric Burdon, Tom Jones and Joe Cocker to produce slow tempo songs often building to a loud and emotive chorus backed by drums, electric guitars and sometimes choirs.

He commanded enormous fees playing dances there, and began to make more creative use of electric guitars to replace the big horn sections the Tulsa band had boasted.

The Jenerators are a blues-rock band based in Los Angeles, CA featuring Tom Hebenstreit on vocals, electric guitars and keyboards ; Bill Mumy on vocals, acoustic and electric guitars, harmonica, keyboards, and percussion ; Gary Stockdale on vocals and bass ; Miguel Ferrer on vocals, percussion and drums ; David Jolliffe on guitar, percussion and vocals and Chris Ross on drums and percussion.

The steel-string and electric guitars characteristic to the rise of rock and roll in the post-WWII era became more widely played in North America and the English speaking world.

* Typical modern six-string classical guitars are 48 – 54 mm wide at the nut, compared to around 42 mm for electric guitars.

In addition to recording, Atkins became a design consultant for Gretsch, who manufactured a popular Chet Atkins line of electric guitars from 1955 – 1980.

In most disco tracks, strings, horns, electric pianos, and electric guitars create a lush background sound.

They were forced to compete with louder horn instruments ( and later amplified electric guitars ), making bass parts difficult to hear.

Occasionally, acoustic-electric and electric guitars will have built-in effects.

Some of the earliest electric guitars adapted hollow bodied acoustic instruments and used tungsten pickups.

The first electric guitars used in jazz were hollow archtop acoustic guitar bodies with electromagnetic transducers.

The American composers Rhys Chatham and Glenn Branca have written " symphonic " works for large ensembles of electric guitars, in some cases numbering up to 100 players, and the instrument is a core member of the Bang on a Can All-Stars ( played by Mark Stewart ).

The Beginnings of Electric Sound Generation – an exhibit at the Museum of Making Music, National Association of Music Merchants, Carlsbad, CA – some of the earliest electric guitars and their history, from the collection of Lynn Wheelwright and others

There are two primary families of guitars: acoustic and electric.

The acoustic guitar group also includes unamplified guitars designed to play in different registers, such as the acoustic bass guitar, which has a similar tuning to that of the electric bass guitar.

Acoustic bass guitars have steel strings or gut strings and often the same tuning as an electric bass guitar.

The lower fretboard action ( the height of the strings from the fingerboard ), lighter ( thinner ) strings, and its electrical amplification lend the electric guitar to techniques less frequently used on acoustic guitars.

Hybrids of acoustic and electric guitars are also common.

Some electric guitar and electric bass guitar models feature piezoelectric pickups, which function as transducers to provide a sound closer to that of an acoustic guitar with the flip of a switch or knob, rather than switching guitars.

Available features include storage compartments, snack trays, tactile transducers for low-frequency effects, and electric motors to adjust the chair.

For example various electric and pneumatic transducers may fold and glue a cardboard box, fill it with product and then seal it in an automatic packaging machine.

A typical sound reinforcement system consists of ; input transducers ( e. g., microphones ), which convert sound energy into an electric signal, signal processors which alter the signal characteristics, amplifiers, which add power to the signal without otherwise changing its content, and output transducers ( e. g., loudspeakers ), which convert the signal back into sound energy.

There are many other types of input transducers which may be used occasionally, including magnetic pickups used in electric guitars and electric basses, contact microphones used on stringed instruments, and piano and phonograph pickups ( cartridges ) used in record players.

Examples of the firm ’ s products include electric actuating mechanisms, microprocessor controllers, water flow and heat meters, transducers, controlling devices for automated process control systems, and electric stop and control valves.

These ions, under the influence of the electric field, are accelerated into the cathode surface containing the sample, bombarding the sample and causing neutral sample atom ejection through the process known as sputtering.

A simple electric circuit, where current is represented by the letter i. The relationship between the voltage ( V ), resistance ( R ), and current ( I ) is V = IR ; this is known as Ohm's Law.

In the experimental post 1960s eras, which saw the development of free jazz and jazz-rock fusion, some of the influential bassists included Charles Mingus ( 1922 – 1979 ), who was also a composer and bandleader whose music fused hard bop with black gospel music, free jazz and classical music ; free jazz and post-bop bassist Charlie Haden ( born 1937 ) is best known for his long association with saxophonist Ornette Coleman and for his role in the 1970s-era Liberation Music Orchestra, an experimental group ; Eddie Gomez and George Mraz, who played with Bill Evans and Oscar Peterson, respectively, and are both acknowledged to have furthered expectations of pizzicato fluency and melodic phrasing, fusion virtuoso Stanley Clarke ( born 1951 ) is notable for his dexterity on both the upright bass and the electric bass, and Terry Plumeri, noted for his horn-like arco fluency and vocal tone.

Accurate treatment thus incorporates a concept known as retarded time ( as opposed to advanced time, which is not physically possible in light of causality ), which adds to the expressions for the electrodynamic electric field and magnetic field.

The movement of electric charge is known as an electric current, the intensity of which is usually measured in amperes.

The physical principle of production of mechanical force by the interactions of an electric current and a magnetic field was known as early as 1821.

When the net electric charge of an object is non-zero and motionless, the phenomenon is known as static electricity.

The motion of electrons in conductive metals in a specific direction is known as electric current.

Almost all acoustic steel-string guitars, with the primary exception of Taylors, have glued ( otherwise known as set ) necks, while electric guitars are constructed using both types.

Many electric guitars are fitted with a vibrato and pitch bend device known as a " tremolo bar ( or arm )," " sissy bar ," " wang bar ," " slam handle ," " whammy handle ," and " whammy bar.

The observed charge quantization, namely the fact that all known elementary particles carry electric charges which appear to be exact multiples of of the " elementary " charge, has led to the idea that hypercharge interactions and possibly the strong and weak interactions might be embedded in one Grand Unified interaction described by a single, larger simple symmetry group containing the Standard Model.

A known configuration of classical fields has zero entropy: there is nothing random about electric and magnetic fields, or gravitational waves.

At the magnetic dip equator, where the geomagnetic field is horizontal, this electric field results in an enhanced eastward current flow within ± 3 degrees of the magnetic equator, known as the equatorial electrojet.

Guitarist Pat Metheny mixed the sounds of blues, country, and “ world ” music, along with rock and jazz, playing both a flat-top acoustic guitar and an electric guitar with a softer, more mellow tone which was sweetened with a shimmering effect known as “ chorusing ".

While jazz can be played on any type of guitar, from an acoustic instrument to a solid-bodied electric guitar such as a Fender Stratocaster, the full-depth archtop guitar has become known as the prototypical " jazz guitar.

When physical chemist Richard Williams applied an electric field to a thin layer of a nematic liquid crystal at 125 ° C, he observed the formation of a regular pattern that he called domains ( now known as Williams Domains ).

In 1897 second storey wings were added to ‘ The Grandstand ’, as it was known, increasing capacity to 9, 000 and in 1900 it was lit with electric light.

File: Georg Simon Ohm3. jpg | Georg Ohm ( 1789-1854 ): found that there is a direct proportionality between the electric current I and the potential difference ( voltage ) V applied across a conductor, and that this current is inversely proportional to the resistance R in the circuit, or I = V / R, known as Ohm's law, namesake of the unit of electrical resistance ( the ohm )

Other phenomena where light affects the movement of electric charges include the photoconductive effect ( also known as photoconductivity or photoresistivity ), the photovoltaic effect, and the photoelectrochemical effect.

Quarks are the only elementary particles in the Standard Model of particle physics to experience all four fundamental interactions, also known as fundamental forces ( electromagnetism, gravitation, strong interaction, and weak interaction ), as well as the only known particles whose electric charges are not integer multiples of the elementary charge.

A major break-through came with the introduction of what are now known as Ashtekar variables, which represent geometric gravity using mathematical analogues of electric and magnetic fields.