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electric(al) polarity

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  • Electric guitar — Fender Stratocaster String instrument Classification String instrument (plucked, either by fingerpicking, or with a pick.) …   Wikipedia

  • Electric charge — SI symbol: Q SI quantity dimension: Q SI unit: coulomb other units: e Derivations from other quantities: Q = I · …   Wikipedia

  • polarity — ► NOUN (pl. polarities) 1) the state of having poles or opposites. 2) the direction of a magnetic or electric field …   English terms dictionary

  • Polarity (physics) — In physics, polarity is a description of an attribute, typically a binary attribute (one with two values), or a vector (a direction). For example:* An electric charge has a polarity of either positive or negative. * A voltage has a polarity, in… …   Wikipedia

  • electric motor — motor (def. 4). [1885 90] * * * Introduction       any of a class of devices that convert electrical energy to mechanical energy, usually by employing electromagnetic phenomena.       Most electric motors develop their mechanical torque by the… …   Universalium

  • electric polarity — elektrinis poliškumas statusas T sritis fizika atitikmenys: angl. electric polarity; electrical polarity vok. elektrische Polarität, f rus. электрическая полярность, f pranc. polarité électrique, f …   Fizikos terminų žodynas

  • Electric motor — For other kinds of motors, see motor (disambiguation). For a railroad electric engine, see electric locomotive. Various electric motors. A 9 volt PP3 transistor battery is in the center foreground for size comparison. An electric motor converts… …   Wikipedia

  • electric dipole — Pair of equal and opposite electric charges, the centres of which do not coincide. An atom in which the centre of the negative cloud of electrons has been shifted slightly away from the nucleus by an external electric field is an induced electric …   Universalium

  • Electric dipole moment — In physics, the electric dipole moment (or electric dipole for short) is a measure of the polarity of a system of electric charges. In the simple case of two point charges, one with charge {+}q and one with charge { }q, the electric dipole moment …   Wikipedia

  • electric generator — ▪ instrument Introduction also called  dynamo,         any machine that converts mechanical energy to electricity for transmission and distribution over power lines to domestic, commercial, and industrial customers. Generators also produce the… …   Universalium

  • polarity — po|lar|i|ty [pəˈlærıti] n plural polarities [U and C] 1.) formal a state in which people, opinions, or ideas are completely different or opposite to each other polarity between ▪ the polarity between the intellect and the emotions 2.) technical… …   Dictionary of contemporary English

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