negative polarity

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• Polarity — may refer to: Chemical polarity, a concept in chemistry which describes how equally bonding electrons are shared between atoms Electrical polarity Polarity (physics), a physical alignment of atoms Grammatical polarity, the distinction of… …   Wikipedia

• Polarity (disambiguation) — Polarity may refer to: *Chemical polarity, a concept in chemistry which describes how equally bonding electrons are shared between atoms *Polarity (physics), a physical alignment of atoms *Grammatical polarity, the distinction of affirmative and… …   Wikipedia

• Polarity item — In linguistics, a polarity item is a lexical element that can appear only in the environment of a certain licensing context. Polarity items are defined as Negative Polarity Items (NPIs) or Positive Polarity items (PPIs). Simple negation creates a …   Wikipedia

• Polarity symbols — Many electrical devices use direct current (DC) power, often provided by a AC (alternating current) to DC adapter, also known as a wall wart. The polarity of the adapter cord must match the polarity of the device, meaning that the positive… …   Wikipedia

• Negative — may refer to: Contents 1 Science and mathematics 2 Photography 3 Linguistics …   Wikipedia

• Negative Zone — Publication information Publisher Marvel Comics First appearance Fantastic Four vol.1 #51 (June 1966) Created by Stan Lee Jack Kirby …   Wikipedia

• polarity — [pō lar′ə tē] n. pl. polarities 1. the tendency of bodies having opposite magnetic poles to arrange themselves so that their two extremities point to the two magnetic poles of the earth 2. any tendency to turn, grow, think, feel, etc. in a… …   English World 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

• Negative impedance converter — The negative impedance converter (NIC) is a one port op amp circuit acting as a negative load which injects energy into circuits in contrast to an ordinary load that consumes energy from them. This is achieved by adding or subtracting excessive… …   Wikipedia

• Negative feedback amplifier — Figure 1: Ideal negative feedback model A negative feedback amplifier (or more commonly simply a feedback amplifier) is an amplifier which combines a fraction of the output with the input so that a negative feedback opposes the original signal.… …   Wikipedia

• polarity — [1] Indicates if the pole shoes are so magnetized as to make current low in a direction compatible with the direction of flow as set by the battery. [2] Indicates if the end of a magnet is the North or South pole (N or S). [3] Indicates if the… …   Dictionary of automotive terms