what is polarity in engineering
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Polarity The term Polarity as applied to audio is used to describe the relationship of the electrical audio waveform to the original acoustic waveform.
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- When a magnet's polarity is reversed, the changing magnetic lines  of force cutting across wiring induces a voltage in them. This  principle is used primarily in motors.  …   Or perhaps this refers to applying DC power to a device in reverse  polarity by mistake.
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Electric polarization Polarization occurs when an electric field distorts the negative cloud of electrons around positive atomic nuclei in a direction opposite the field. This slight separation of charge makes one side of the atom somewhat positive and the opposite side somewhat negative.
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Polarity It is the result of working with patients over a period of 60 years. Polarity Therapy is a successful synthesis of Eastern and Western therapeutic disciplines. The ancient healing art of Ayurveda as well as the Chinese tradition of Acupuncture are integrated into this unique system.
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Web Service Passing Binary Data, pt 4: Modifying the Schema and WSDL Files In this lesson, you add the WSDL file and schema file to the web application. Then you modify the schema file to interpret arrays of bytes as Images. You also edit the web service source code to correctly locate the schema and WSDL file.
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permittivity Also found in: Encyclopedia, Wikipedia. per·mit·tiv·i·ty. A measure of the ability of a material to interact with an electric field and become polarized by the field, so that the field within the material is weaker than the field in the absence of the material.
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AC/DC: Understanding Polarity Direct current (DC) flows in one direction, resulting in a constant polarity. Alternating current (AC) flows half the time in one direction and half the time in the other, changing its polarity 120 times per second with 60-hertz current. A welder should know the meaning of polarity, and recognize what effect it has on the welding process. With few exceptions, electrode-positive (reversed polarity) results in deeper penetration. Electrode-negative (straight polarity) results in faster melt-off of the electrode and, therefore, faster deposition rate.
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Definitions &Translations In electromagnetism, permittivity or absolute permittivity is the measure of resistance that is encountered when forming an electric field in a medium. In other words, permittivity is a measure of how an electric field affects, and is affected by, a dielectric medium. The permittivity of a medium describes how much electric field (more correctly, flux) is 'generated' per unit charge in that medium. More electric flux exists in a medium with a low permittivity (per unit charge) because of polarization effects. Permittivity is directly related to electric susceptibility, which is a measure of how easily a dielectric polarizes in response to an electric field.
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Polarity Welding with DC Straight and Reverse Polarity Welding with DC Straight and Reverse Polarity. To understand welding with DC straight and reverse polarity, it is important to understand the electrical arc welding circuit, which is the same as any electrical circuit.
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- Posted on April 30, 2008 by Welding. To understand welding with DC straight and reverse polarity, it is important to understand the electrical arc welding circuit, which is the same as any electrical circuit.
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polarity Polarity is a term used in electricity, magnetism, and electronic signaling. Suppose there is a constant voltage , also called an electric potential or electromotive force (EMF), between two objects or points. In such a situation, one of the objects or points (poles) has more electrons than the other.
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Is polarization a property of transverse waves, longitudinal waves, both or neither? Polarization (also polarisation) is a property of waves that can oscillate with more than one orientation. Electromagnetic waves such as light exhibit polarization, as do some other types of wave, such as gravitational waves.Sound waves in a gas or liquid do not exhibit polarization, since the oscillation is always in the direction the wave travels.lectromagnetic waves such as light exhibit polarization, as do some other types of wave, such as gravitational waves. Sound waves in a gas or liquid do not exhibit polarization, since the oscillation is always in the direction the wave travels.
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polarity polarity. n, pl-ties. 1. the condition of having poles. 2. (General Physics) the condition of a body or system in which it has opposing physical properties at different points, esp magnetic poles or electric charge.3. (General Physics) the particular state of a part of a body or system that has polarity: an electrode with positive polarity.olarity. n, pl-ties. 1. the condition of having poles. 2. (General Physics) the condition of a body or system in which it has opposing physical properties at different points, esp magnetic poles or electric charge.
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- In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the Earth.trictly speaking, the terms grounding or earthing are meant to refer to an electrical connection to ground/earth. Bonding is the practice of intentionally electrically connecting metallic items not designed to carry electricity.
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AC/DC: Understanding Polarity The latter terms are more descriptive and will be used throughout this article. Polarity results from the fact that an electrical circuit has a negative and a positive pole. Direct current (DC) flows in one direction, resulting in a constant polarity.Alternating current (AC) flows half the time in one direction and half the time in the other, changing its polarity 120 times per second with 60-hertz current.he latter terms are more descriptive and will be used throughout this article. Polarity results from the fact that an electrical circuit has a negative and a positive pole. Direct current (DC) flows in one direction, resulting in a constant polarity.
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- For most covalent substances, their bond character falls between these two extremes. Bond polarity is a useful concept for describing the sharing of electrons between atoms . A nonpolar covalent bond is one in which the electrons are shared equally between two atoms ; A polar covalent bond is one in which one atom has a greater attraction for the electrons than the other atom. If this relative attraction is great enough, then the bond is an ionic bond; Electronegativity
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nonlinearity Nonlinearity is the behavior of a circuit, particularly an amplifier, in which the output signal strength does not vary in direct proportion to the input signal strength. In a nonlinear device, the output-to-input amplitude ratio (also called the gain) depends on the strength of the input signal. In an amplifier that exhibits nonlinearity, the output-versus-input signal amplitude graph appears as a curved line over part or all of the input amplitude range.
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- Full Definition of POLARITY. 1. : the quality or condition inherent in a body that exhibits opposite properties or powers in opposite parts or directions or that exhibits contrasted properties or powers in contrasted parts or directions: the condition of having poles.2.: attraction toward a particular object or in a specific direction. 3.. : the quality or condition inherent in a body that exhibits opposite properties or powers in opposite parts or directions or that exhibits contrasted properties or powers in contrasted parts or directions: the condition of having poles. 2. : attraction toward a particular object or in a specific direction. 3.
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- Transformer Polarity Copyright 2002 Kilowatt Classroom, LLC. banks and to properly parallel single or three -phase transformers with existing electrical systems. polarity is also required to connect potential and current transformers to power metering devices and protective relays. The basic theory of additive and subtractive polarity is the underlying principle used in step voltage regulators where
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- Answer Wiki. Polarity is only a model of directional flow - i.e. where current flows from and to in an electrical circuit. This in mind, it's quite clear that changing polarities in either a purely resistive, an RC, RL, or RLC network affects pretty much nothing.
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- The coordinate system that is often used to display the phase angle of a circuit containing resistance, inductive and/or capacitive reactance is polar coordinates. (e5c14)
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polarity Part of the Smart grid glossary: Also see bipolar signaling and unipolar signaling. Polarity is a term used in electricity, magnetism, and electronic signaling. Suppose there is a constant voltage, also called an electric potential or electromotive force (EMF), between two objects or points.In such a situation, one of the objects or points (poles) has more electrons than the other. magnetic field is characterized by poles called north and south. Magnetic polarity refers to the orientation of these poles in space. In digital communications, data is composed of short-duration pulses called bit s (binary digits).
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Is polarization a property of transverse waves, longitudinal waves, both or neither? Polarization (also polarisation) is a property of waves that can oscillate with more than one orientation. Electromagnetic waves such as light exhibit polarization, as do some other types of wave, such as gravitational waves. Sound waves in a gas or liquid do not exhibit polarization, since the oscillation is always in the direction the wave travels.
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- 1 Cell polarity, differences in the shape, structure, and function of cells. 2  Chemical polarity, a concept in chemistry which describes how equally bonding electrons are shared between atoms.  Polar reciprocation, a concept in geometry also known as polarity.
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polarity Medical Definition of POLARITY. 1. : the quality or condition inherent in a body that exhibits contrasting properties or powers in contrasting parts or directions. 2. : attraction toward a particular object or in a specific direction.3. the quality or condition inherent in a body that exhibits opposite properties or powers in opposite parts or directions or that exhibits contrasted properties or powers in contrasted parts or directions: the condition of having poles. 2. : attraction toward a particular object or in a specific direction. 3.
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AC/DC: Understanding Polarity The terms straight and reverse polarity are used around the shop. They may also be expressed as electrode-negative and electrode-positive polarity. The latter terms are more descriptive and will be used throughout this article. Polarity results from the fact that an electrical circuit has a negative and a positive pole. Direct current (DC) flows in one direction, resulting in a constant polarity. Alternating current (AC) flows half the time in one direction and half the time in the other, changing its polarity 120 times per second with 60-hertz current. A welder should know the meaning of polarity, and recognize what effect it has on the welding process.