Electrical Phenomena Article Index for
Electrical
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Information About

Electrical Phenomena




Electrical phenomena are a somewhat arbitrary division of
Electromagnetic Phenomena .

Some examples are

  • Contact Electrification — The phenomenon of electrification by contact. When two objects were touched together, sometimes the objects became spontaneously charged (οne negative charge, one positive charge).

  • Electroluminescence — The phenomenon where a material emits light in response to an electric current passed through it, or to a strong electric field.

  • Electrical Conduction — The movement of electrically charged particles through transmission medium.

  • Electric Shock — Physiological reaction of a biological organism to the passage of electric current through its body.

  • Ferroelectric Effect — The phenomenon whereby certain ionic crystals may exhibit a spontaneous dipole moment.

  • Galvanic Current — Direct Current or "continuous current"; The continuous flow of electricity through a conductor such as a wire from high to low potential.

  • Lightning — powerful natural electrostatic discharge produced during a thunderstorm. Lightning's abrupt electric discharge is accompanied by the emission of light.

  • Photoconductivity — The phenomenon in which a material becomes more conductive due to the absorption of electro-magnetic radiation such as visible light, ultraviolet light, or gamma radiation.

  • Photoelectric Effect — Emission of electrons from a surface (usually metallic) upon exposure to, and absorption of, electromagnetic radiation (such as visible light and ultraviolet radiation).

  • Piezoelectric Effect — Ability of certain crystals to generate a voltage in response to applied mechanical stress.

  • Pyroelectric Effect — The potential created in certain materials when they are heated.

  • Static Electricity — Class of phenomena involving the imbalanced charge present on an object, typically referring to charge with voltages of sufficient magnitude to produce visible attraction (e.g., static cling), repulsion, and sparks.

  • Spark s — Electrical breakdown of a medium which produces an ongoing plasma discharge, similar to the instant spark, resulting from a current flowing through normally nonconductive media such as air.

  • Telluric Current s — Extremely low frequency electrical current that occurs naturally over large underground areas at or near the surface of the Earth.

  • Triboelectric Effect — Type of contact electrification in which objects become electrically charged after coming into contact and are then separated.

  • Whistlers Altair's site on Natural Radio Signals — Very low frequency radio wave generated by lightning



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