charge


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Related to charge: electric charge, Free charge, CHARGE syndrome

charge,

property of matter that gives rise to all electrical phenomena (see electricityelectricity,
class of phenomena arising from the existence of charge. The basic unit of charge is that on the proton or electron—the proton's charge is designated as positive while the electron's is negative.
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). The basic unit of charge, usually denoted by e, is that on the protonproton,
elementary particle having a single positive electrical charge and constituting the nucleus of the ordinary hydrogen atom. The positive charge of the nucleus of any atom is due to its protons.
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 or the electronelectron,
elementary particle carrying a unit charge of negative electricity. Ordinary electric current is the flow of electrons through a wire conductor (see electricity). The electron is one of the basic constituents of matter.
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; that on the proton is designated as positive (+e) and that on the electron is designated as negative (−e). All other charged elementary particleselementary particles,
the most basic physical constituents of the universe. Basic Constituents of Matter

Molecules are built up from the atom, which is the basic unit of any chemical element. The atom in turn is made from the proton, neutron, and electron.
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 have charges equal to +e,e, or some whole number times one of these, with the exception of the quark, whose charge could be 1-3e or 2-3e. Every charged particle is surrounded by an electric fieldfield,
in physics, region throughout which a force may be exerted; examples are the gravitational, electric, and magnetic fields that surround, respectively, masses, electric charges, and magnets. The field concept was developed by M.
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 of forceforce,
commonly, a "push" or "pull," more properly defined in physics as a quantity that changes the motion, size, or shape of a body. Force is a vector quantity, having both magnitude and direction.
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 such that it attracts any charge of opposite sign brought near it and repels any charge of like sign, the magnitude of this force being described by Coulomb's lawCoulomb's law
, in physics, law stating that the electrostatic force between two charged bodies is proportional to the product of the amount of charge on the bodies divided by the square of the distance between them.
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 (see electrostaticselectrostatics,
study of phenomena associated with charged bodies at rest (see charge; electricity). A charged body has an excess of positive or negative charges, a condition usually brought about by the transfer of electrons to or from the body.
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). This force is much stronger than the gravitational force between two particles and is responsible for holding protons and electrons together in atoms and for chemical bonding. When equal numbers of protons and electrons are present, the atom is electrically neutral, and more generally, any physical system containing equal numbers of positive and negative charges is neutral. Charge is a conserved quantity; the net electric charge in a closed physical system is constant (see conservation lawsconservation laws,
in physics, basic laws that together determine which processes can or cannot occur in nature; each law maintains that the total value of the quantity governed by that law, e.g., mass or energy, remains unchanged during physical processes.
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). Whenever charges are created, as in the decay of a neutron into a proton, an electron, and an antineutrino, equal amounts of positive and negative charge must be created. Although charge is conserved, it can be transferred from one body to another. Electric current, on which much of modern technology is dependent, is a flow of charge through a conductor (see conductionconduction,
transfer of heat or electricity through a substance, resulting from a difference in temperature between different parts of the substance, in the case of heat, or from a difference in electric potential, in the case of electricity.
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). Although current is usually treated as a continuous quantity, it actually consists of the transfer of millions of individual charges from atom to atom, typically by the transfer of electrons. A precise description of the behavior of electric charge in crystals and in systems of atomic and molecular dimensions requires the use of the quantum theoryquantum theory,
modern physical theory concerned with the emission and absorption of energy by matter and with the motion of material particles; the quantum theory and the theory of relativity together form the theoretical basis of modern physics.
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.

charge

A property of certain elementary particles that causes them to attract or repel each other. Charged particles have associated electric and magnetic fields that allow them to interact with each other and with external electric and magnetic fields. Charge is conventionally ‘negative’ or ‘positive’: like charges repel, unlike charges attract. The electron possesses the natural unit of negative charge, equal to 1.6022 × 10–19 coulombs. The proton carries a positive charge of the same magnitude. If matter is charged, it is due to an excess or deficit of electrons with respect to protons.

Charge

 

a French term used in some languages (in Russian, sharzh) to describe a satirical or humorous likeness, usually of a person, that renders the model’s outer appearance while emphasizing essential traits of character. The charge, a special type of caricature, is broader than the English term “cartoon,” as it may be executed in various media, including scultpure.

Outstanding masters of the charge have included L. Bernini, H. Daumier, and the Russian artists B. M. Kustodiev, V. A. Serov, and N. A. Stepanov. The genre has been developed in the USSR by V. N. Deni, B. E. Efimov, 1.1. Igin, Kukryniksy, D. S. Moor, and F. P. Reshetnikov. Methods of the charge have often been applied to literature, mainly in lampoons, feuilletons, and epigrams.


Charge

 

a mixture of materials in specific proportion, subjected to treatment in metallurgical, chemical, and other plants. The charge is designed for the manufacture of products with specified physical and chemical properties. Metallurgical charges may contain ores, ore concentrates, agglomerates, recycled slag, dust from a collection device, metals (mainly as scrap), fluxes, and sometimes fuel, for example, in the smelting of pig iron and ferrous alloys in blast furnaces. The charge is loaded into the processing unit in the form of a homogeneous mixture (as a powder, in lumps, or as briquettes) prepared outside the unit or as separate, proportioned quantities of the individual components. The charge materials are usually stored in stockyards.

charge

[chärj]
(electricity)
A basic property of elementary particles of matter; the charge of an object may be a positive or negative number or zero; only integral multiples of the proton charge occur, and the charge of a body is the algebraic sum of the charges of its constituents; the value of the charge may be inferred from the Coulomb force between charged objects. Also known as electric charge, quantity of electricity.
To convert electrical energy to chemical energy in a secondary battery.
To feed electrical energy to a capacitor or other device that can store it.
(engineering)
A unit of an explosive, either by itself or contained in a bomb, projectile, mine, or the like, or used as the propellant for a bullet or projectile.
To load a borehole with an explosive.
The material or part to be heated by induction or dielectric heating.
The measurement or weight of material, either liquid, preformed, or powder, used to load a mold at one time during one cycle in the manufacture of plastics or metal.
(mechanical engineering)
In refrigeration, the quantity of refrigerant contained in a system.
To introduce the refrigerant into a refrigeration system.
(metallurgy)
Material introduced into a furnace for melting.
(nucleonics)
The fissionable material or fuel placed in a reactor to produce a chain reaction.

charge

The quantity of refrigerant in a refrigeration system.

charge

1. a price charged for some article or service; cost
2. an accusation or allegation, such as a formal accusation of a crime in law
3. Physics
a. the attribute of matter by which it responds to electromagnetic forces responsible for all electrical phenomena, existing in two forms to which the signs negative and positive are arbitrarily assigned
b. a similar property of a body or system determined by the extent to which it contains an excess or deficiency of electrons
c. a quantity of electricity determined by the product of an electric current and the time for which it flows, measured in coulombs
d. the total amount of electricity stored in a capacitor
e. the total amount of electricity held in an accumulator, usually measured in ampere-hours.
4. Law the address made by a judge to the jury at the conclusion of the evidence
References in classic literature ?
They knew what the business was before them--the terrible charge of the buffalo herd against which no tiger can hope to stand.
For if, O men of Athens, by force of persuasion and entreaty I could overpower your oaths, then I should be teaching you to believe that there are no gods, and in defending should simply convict myself of the charge of not believing in them.
Natty listened to the charge with great attention, leaning forward toward the reader with an earnestness that denoted his interest; and, when it was ended, he raised his tall body to the utmost, and drew a long sigh.
Have we returned to the times when Cromwell sent us bullies in the guise of charges d'affaires?
The special work which the General desired me to do was be a sort of "house father" to the Indian young men--that is, I was to live in the building with them and have the charge of their discipline, clothing, rooms, and so on.
But now, as it turned to charge again, the man had no guide whereby to direct his point.
Tarzan recognized the ear-marks of the witch-doctor and awaited Numa's charge with a feeling of pleasurable anticipation, for the ape-man had no love for witch-doctors; but in the instant that Numa did charge, the white man suddenly recalled that the lion had stolen his kill a few minutes before and that revenge is sweet.
He saw the great cat veer in his charge as though to elude the naked savage rushing to meet him, as it was evidently Sheeta's intention to make good his kill before attempting to protect it from Tarzan.
With daylight their courage would be equal to the demands of a charge upon the handful of beasts that had routed them from their rightful abodes.
In silence they left the hotel and drove to the Embassy, in silence the young man ushered his charge into the large, pleasant apartment on the ground floor of the Embassy, where the ambassador was giving instructions to two of his secretaries.
The upshot of all this was that when Boxtel, who watched the course of political events much more attentively than his neighbour Cornelius was used to do, heard the news of the brothers De Witt being arrested on a charge of high treason against the States, he thought within his heart that very likely he needed only to say one word, and the godson would be arrested as well as the godfather.
And from the bush they had sent word that they were coming back to wipe out the three white men in charge, while two of the three white men, in turn, were hunting them through the bush.