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Term |
Definition |
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ELECTRICAL GENERATOR |
An assembly consisting of a magnet mounted on a frame, and a wire coil (armature) that can be rotated within the magnetic field. The function of the generator is to convert mechanical energy into electrical energy. See TURBINE. |
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ELECTRODES |
Conductive metallic strips normally inserted into an electrolyte to provide the chemical action needed to convert chemical energy into electrical energy. |
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ELECTROLYTE |
A solution of specific chemicals in a battery which convert chemical energy into electrical energy. |
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ELECTROMOTIVE FORCE (EMF) |
The electrical force that exists across the terminals of an electrical generator, or battery. When connected to a load in a closed circuit, this force produces a voltage across the load and causes current to flow in that circuit. EMF is measured in volts and designated with the letter E (supply voltage) or V (load voltage). |
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ELECTRON |
Considered to be the smallest unit of electrical charge. |
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ELECTROSTATIC CHARGE |
The accumulation of electrons on the surface of a nonconducting material when it is rubbed by another nonconducting material. See TRIBOELECTRIC EFFECT. |
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ELECTROSTATIC DISCHARGE (ESD) |
A transfer of an electrostatic charge between a material with an excess of electrons and a material with a deficiency of electrons. |
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EMITTER |
One of the terminals of a bipolar transistor that is generally used as the terminal common to both the input and output sections of the device |
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ENCAPSULATE |
Sealing or covering of a microcircuit to provide mechanical and environmental protection. |
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ENCAPSULATED WIREWOUND |
Resistance alloy in wire form wound on a former and encased in an epoxy (or other suitable material) molded case. |
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EPITAXIAL GROWTH (EPI) |
An optional step in the semiconductor manufacturing process in which a blank silicon wafer is prepared for fabrication. Silicon is precipitated in gaseous form to grow on the surface of the silicon wafer. |
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