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In cgs units, one erg is 1 g cm2 s−2, equal to 1.0×10−7 J.

The imperial/U.S. units for both energy and work include the foot-pound force (1.3558 J), the British thermal unit (Btu) which has various values in the region of 1055 J, and the horsepower-hour (2.6845 MJ).

The energy unit used for everyday electricity, particularly for utility bills, is the kilowatt-hour (kWh), and one kWh is equivalent to 3.6×106 J (3600 kJ or 3.6 MJ). Electricity usage is often given in units of kilowatt-hours per year (kWh/yr). This is actually a measurement of average power consumption, i.e., the average rate at which energy is transferred.

The calorie equals the amount of thermal energy necessary to raise the temperature of one gram of water by 1 Celsius degree, at a pressure of 1 atm. For thermochemistry a calorie of 4.184 J is used, but other calories have also been defined, such as the International Steam Table calorie of 4.1868 J. Food energy is measured in large calories or kilocalories, often simply written capitalized as "Calories" (= 103 calories).

In physics and chemistry, it is still common to measure energy on the atomic scale in the non-SI, but convenient, units electronvolts (eV). The Hartree (the atomic unit of energy) is commonly used in calculations. Historically Rydberg units have been used.

In spectroscopy and related fields it is common to measure energy levels in units of reciprocal centimetres. These units (cm−1) are strictly speaking not energy units but units proportional to energies, with hc being the proportionality constant.

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What is the unit of energy in cgs system?

The unit of energy in the CGS system is the erg. It is a small unit of energy equal to 10^-7 joules.


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The cgs power unit is the erg, a dyne-centimeter.


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In the CGS system, the unit of frequency is measured in hertz (Hz), just like in the International System of Units (SI).


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The unit of energy in the centimeter-gram-second (CGS) system is the erg.


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The cgs unit of current in electromagnetic system equivalent to 10 amperes is 10 amperes.


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CGS unit of time is Second,s.


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The centimetre-gram-second system (abbreviated CGS or cgs) is a metric system of physical units based on centimetre as the unit of length, gram as a unit of mass, and second as a unit of time. All CGS mechanical units are unambiguously derived from these three base units, but there are several different ways of extending the CGS system to cover electromagnetism.CGS approach to electromagnetic units The conversion factors relating electromagnetic units in the CGS and SI systems are much more involved - so much so that formulas for physical laws of electromagnetism are adjusted depending on what system of units one uses. refer to link below for methods


What is the cgs and mks unit of power?

cgs . . .dyne-centimeter/second, equivalent to erg/secondmks . . .watt, equivalent tojoule/secondnewton-meter/secondkilogram-meter2/second3


Unit of work in CGS system?

The unit of work in the CGS (Centimeter-Gram-Second) system is erg. 1 erg is equivalent to 1 dyne force applied over a distance of 1 centimeter.


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