Definitions of Technical Terms
"A" "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M",
"N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"

'E' to 'Ed', 'Ee' to 'Ele', 'Ele' to 'Ele',
'Em' to 'Er', 'Es' to 'Ew', 'Ex' to 'Ez'

EEPROM. or an Electrically Erasable PROM is the same as an EPROM except that an EEPROM may be erased via an electric field, hence the term Electrically Erasable. Because these devices are erased via a voltage and not light they do not require a window like EPROMs do. A Flash EPROM is about the same as an EEPROM but does not require an addition special voltage to be erased, and may be erased all at once and not on a byte bases. Memory]. Read more; EEPROM Definition.

Effective Resistance. Alternating current resistance. The total power dissipated divided by the current [squared].

Effective Value. Same as Root-Mean-Square. The value of alternating voltage or current that will have the same effect on a resistance as a comparable value of direct voltage or current will have on the same resistance. Peak voltage x 0.707 for a sine wave.

Efficiency. The ratio of output-signal power compared to the total input power, generally expressed as a percentage.

E-Field. Electric field that exists when a difference in electrical potential causes a stress in the dielectric between two points.

Egg Insulator. A cable insulator formed in the shape of an egg, used to separate one cable from another. Refer to the companion site for a graphic of an Egg Insulator.

EIA Interface. Any of a number of equipment interfaces compliant with voluntary industry standards developed by the Electronic Industries Association (EIA) to define interface parameters.

Elasticity. The ability of a substance to return to its original state. The force-displacement characteristic of a material.

Elastomer. A material that at room temperature stretches under low stress to at least twice its length and snaps back to original length upon release of stress.

Electric Circuit. Path followed by electrons from a power source (generator or battery) through an external line (including devices that use the electricity) and returning through another line to the source.

Electric Current. The flow of electrons.

Electric (E) Field. The field of force that is produced as a result of a voltage charge on a conductor or antenna.

Electrical Charge. Symbol Q, q. Electric energy stored on or in an object. The negative charge is caused by an excess of electrons; the positive charge is caused by a deficiency of electrons.

Electrical Chemical. The action of converting chemical energy into electrical energy.

Electrical Cord. Two or more insulated tinsel conductors in a common covering or twisted or molded together without a common covering; or two or more stranded conductors wound in a specifically designed spiral construction for extra flexibility.

Electrical Grid. An integrated system of electricity distribution, usually covering a large area.

Electrical Interference. Any undesired electrical or electromagnetic signal that interferes with the reception of the desired signal.

Electrical-Lock. A synchro zeroing method. This method is used only when the rotors of the synchros to be zeroed are free to turn and their leads are accessible. Refer to the term Synchro for a diagram.

Electrical Power System. Provides the necessary input power.

Electrical Symbols. Graphic symbols used to illustrate the various electrical or electronic components of a circuit.

Electrical Zero. A standard synchro position, with a definite set of stator voltages, that is used as the reference point for alignment of all synchro units.

Electrode. A device that emits or collects charged carriers. The terminal at which electricity passes from one medium into another, such as in an electrical cell where the current leaves or returns to the electrolyte.

Electrodynamic Meter Movement. A meter movement using fixed field coils and a moving coil; usually used in analog ammeters and watt meters. However digital meters have all but replaced the analog meter movement.

Electrodynamic Speaker. A speaker using an electromagnet.

Electrodynameter. A meter using an electrodynamic movement to measure an electric current.

Electroluminescence. Light emitted from a material as a result of applied current or electric field.

Electrolysis. The process of changing the chemical composition of a material by passing an electric current through it.

Electrolyte. A solution of a substance that is capable of conducting electricity. An electrolyte may be in the form of either a liquid or a paste.

Electrolytic Capacitor. Refer to the separate Dictionary of Capacitor Terms.

PC motherboard

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