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Electronics Glossery: E

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

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

Laminated form in the shape of the letter "E", onto which inductors and transformers are wound.

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Source:http://www.twysted-pair.com/dictionary.htm

Currents induced into a conducting core due to the changing magnetic field. Eddy currents produce heat which is a loss of power and lowers the efficiency of an inductor.

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Source:http://www.twysted-pair.com/dictionary.htm

Electricly Erasble Programable Read Only Memeory

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A signal path which allows an audio processor to be switched in and out of the signal path such as an equalizer.

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Source:http://www.the12volt.com/glossary/glossary.asp

The ratio of energy output to total energy input, expressed as a percentage. With speakers, this refers to the ratio of total acoustic watts radiated to total electrical watts input.
The amount of power delivered to the load of an amplifier as a percentage of the power required from the power supply.

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Electric energy stored on the surface of a material. Also known as a static charge.

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Source:http://www.twysted-pair.com/dictionary.htm

A field or force that exists in the space between two different potentials or voltages. Also known as an electrostatic field.

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Source:http://www.twysted-pair.com/dictionary.htm

A displacement of bound charges in a dielectric when placed in an electric field.

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Source:http://www.twysted-pair.com/dictionary.htm

Science states that certain particles possess a force field or charge. The charge possessed by an electron is negative while the charge possessed by a proton is positive. Electricity can be divided into two groups, static and dynamic. Static electricty deals with charges at rest and dynamic electricity deals with charges in motion.

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Source:http://www.twysted-pair.com/dictionary.htm

Device that produces an energy transfer from electric to acoustic (sound) or from acoustic to electric. Examples include a microphone, earphones and loudspeakers.

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Source:http://www.twysted-pair.com/dictionary.htm

Conversion of electrical energy into light energy.

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Electrically conducting liquid (wet) or paste (dry)

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A capacitor having an electrolyte between the two plates. A thin layer of oxide is deposited on only the positive plate. The oxide acts as the dielectric for the capacitor. Electrolytic capacitors are polarized and so must be connected in correct polarity to prevent breakdown.

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Source:http://www.twysted-pair.com/dictionary.htm

A coil of wire usually wound on a soft iron or steel core. When current is passed through the coil a magnetic field is generated. The core provides an easy path for the magnetic lines of force. This concentrates the field in the core.

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Source:http://www.twysted-pair.com/dictionary.htm

Use of an electromagnetic wave to pass information between two points. Also called wireless communication.

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Voltage produced in a coil due to relative motion between the coil and magnetic lines of force.

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The interference caused by an electromagnetic field created by the flow of current.

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Source:http://www.the12volt.com/glossary/glossary.asp

List or diagram showing the range of electromagnetic radiation.

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Source:http://www.twysted-pair.com/dictionary.htm

Wave taht consists of both electric and magnetic variation.

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Relates to the magnetic field generated around a conductor when current is passed through it.

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Device that transforms electrical energy into mechanical energy (electric motor) or mechanical energy into electrical energy (generator).

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Force that causes the motion of electrons due to potential difference between two points. (voltage)

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Smallest sub atomic particle of negative charge that orbits the nucleus of an atom.

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Electrical current produced by the movement of free electrons towards a positive terminal.

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Related to static electric charge.

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Force field produced by static electrical charges.

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A speaker composed of two pieces of metallic foil separated by a sheet of dielectric unlike a cone and voice coil of a typical cone-type speaker.

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Source:http://www.the12volt.com/glossary/glossary.asp

The semiconductor region from which charge carriers are injected into the base of a bipolar junction transistor.

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Source:http://www.twysted-pair.com/dictionary.htm

Coupling from the emitter output to the base input of a bipolar junction transistor.

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A common collector amplifier. Has a high current gain, high input impedance and low output impedance.

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Being electrically connected to a voltage source so the device is activated.

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Capacity to do work.

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A floating point system in which numbers are expressed as products consisting of a number greater than one multiplied by an appropriate power of ten that is some multiple of three.

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Source:http://www.twysted-pair.com/dictionary.htm

A field effect transistor in which there are no charge carriers in the channel when the gate source voltage is zero.

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The process of changing the frequency balance of a signal so acoustical energy is proportional to the electrical input (or any type of relative frequency adjustment).

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Source:http://www.the12volt.com/glossary/glossary.asp

A component designed to alter the frequency balance of an audio signal.

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Total resistance of all the individual resistances in a circuit.

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A prefix meaning 10¹⁸ or 1,000,000,000,000,000,000

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Source:http://www.the12volt.com/glossary/glossary.asp

Definition

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Created: __/__/03
Updated: __/__/__
Checked: __/__/__