In the International System of Units, the derived unit of energy, work and heat; the work required to exert a force of one newton for a distance of one metre. Also equal to the energy of one watt of power for a duration of one second. Symbol: J
A unit of energy or work in the MKS system; the work done when the point of application of 1 newton is displaced a distance of 1 meter in the direction of the force
The unit of work; the product of a force of one newton acting through a distance of one meter
a unit of energy or work which is equivalent to one watt per second or 0 737 foot-pounds; a calorie is equal to 4 184 joules
A measure of the amount of energy delivered by one watt of power in one second, or 1 million watts of power in one microsecond The joule rating of a surge protection device is the amount of energy that it can absorb before it becomes damaged In comparing surge protection performance, the Joule rating of a surge suppressor is less important than the let-through voltage rating This reflects the fact that surge suppressors may protect equipment by deflecting surges as well as absorbing them There is no standard for measuring the joule rating of surge suppressors which has resulted in wildly exaggerated claims by unscrupulous vendors
In physics, a joule is a unit of energy or work. a unit for measuring energy or work (James Joule (1818-89), English scientist)
In the International System of Units, the derived unit of energy, work and heat; the work required to exert a force of one newton for a distance of one metre. Also equal to the energy of one watt of power for a duration of one second. Symbol
A unit of energy or work which is equivalent to one wattsecond or 0 737 footpounds Work done when a force of one newton moves an object one meter in the direction of the force
A unit of energy One joule is equal to the energy expended in one second by one ampere against the resistance of one ohm In the mechanical testing of steel it is the unit used in the Charpy V notch impact test
A measurement The international unit of energy One joule is equal to one WATT - second or 0 737 foot pounds (081)
a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second
A unit of energy, work or quantity of heat equal to 0 4342 foot-pounds One Joule is the energy expended when a force of one Newton is applied over a displacement of one meter in the direction of the force
unit of energy or work used in rating gas turbine ignition systems A joule is equal to the amount of energy expended in one second by an electric current of one ampere through a resistance of one ohm
A unit of measured energy One calorie is equal to 4 18 joules One calorie is the amount of energy needed to raise the temperature of one gram of water one degree centigrade In terms of power, one joule is equal to one watt-second performance in laser applications is defined by joules per pulse instead of average power because the amount of material melted or vaporized is directly related to laser's energy per pulse, not its average power
A proposed international unit for expressing mechanical chemical, or electrical energy, as well as the concept of heat In the future, energy requirements and feed values may be expressed by this unit (4 184J = 1 calorie)
Unit of energy, equivalent to the work done in lifting a one-newton weight a distance of one meter
A unit of energy One joule is the energy expended in 1 second by a current of 1 amp flowing through a resistance of 1 ohm
A narrow piece of scenery used to join together two flats or wings of an interior setting
A unit of energy, equal to the work required lift a one kilogram mass a distance of 0 101 meters, or to lift a one pound mass 8 8 inches For IFE the unit megajoules (MJ), or millions of joules, is convenient For comparison, the detonation of one kilogram (2 2 pounds) of high explosive releases roughly 4 2 MJ, the combustion of a kilogram of coal releases just over 30 MJ of energy, and the National Ignition Facility's lasers will deposit 1 8 MJ of laser energy into ICF targets Units of kilojoules (kJ), or thousands of joules; and gigajoules (GJ), or billions of joules, are also used
The amount of work done when the point of application of a force of one newton is displaced a distance of one metre in the direction of the force One megajoule ("MJ") means 1,000,000 joules; one gigajoule ("GJ") means 1,000,000,000 joules
The SI unit of energy, work, or quantity of heat One Joule is the energy expended when a force of one newton is applied over a displacement of one meter in the direction of the force
{i} newton-meter, unit of energy equal to the work performed by one newton moving over a distance of one meter in the direction of the force (Physics)
a unit of energy One joule is equal to the work done when a current of one ampere is passed through a resistance of one ohm for one second One joule = 107 ergs = 9 48 x 10-4 BTUs A 100-watt light bulb uses 100 joules every second Measuring joules allows the comparison of energy needs, capacities, and efficiencies For example, all of the world's humanity used 31 5 x 1018 joules of electrical, mechanical, fossil fuel and heat energy in 1990 (Source: Mintzer, 1992)
English physicist who established the mechanical theory of heat and discovered the first law of thermodynamics (1818-1889) a unit of electrical energy equal to the work done when a current of one ampere passes through a resistance of one ohm for one second To fit as if by joints; to coalesce as joints do; as, the stones joint, neatly
system of units (ergs), and is practically equivalent to the energy expended in one second by an electric current of one ampere in a resistance of one ohm
born Dec. 24, 1818, Salford, Lancashire, Eng. died Oct. 11, 1889, Sale, Cheshire English physicist. After studying under John Dalton, in 1840 he described "Joule's law," which stated that the heat produced in a wire by an electric current is proportional to the product of the resistance of the wire and the square of the current. In 1843 he published his value for the amount of work required to produce a unit of heat, called the mechanical equivalent of heat, and established that heat is a form of energy. He established that the various forms of energy are basically the same and can be changed from one into another, a discovery that formed the basis of the law of conservation of energy, the first law of thermodynamics. In his honour, the value of the mechanical equivalent of heat is usually represented by the letter J, and a standard unit of work is called the joule
born Dec. 24, 1818, Salford, Lancashire, Eng. died Oct. 11, 1889, Sale, Cheshire English physicist. After studying under John Dalton, in 1840 he described "Joule's law," which stated that the heat produced in a wire by an electric current is proportional to the product of the resistance of the wire and the square of the current. In 1843 he published his value for the amount of work required to produce a unit of heat, called the mechanical equivalent of heat, and established that heat is a form of energy. He established that the various forms of energy are basically the same and can be changed from one into another, a discovery that formed the basis of the law of conservation of energy, the first law of thermodynamics. In his honour, the value of the mechanical equivalent of heat is usually represented by the letter J, and a standard unit of work is called the joule
A unit of energy, also known as watt-seconds Some suppressors are rated in joules, meaning that if a surge exceeds the joule rating, the suppressor will likely be damaged The joule rating of many suppressors deteriorates with use
International system unit of energy, equal to the work done when the point of application of a force of 1 newton is displaced 1 meter in the direction of the force