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  2. Erg - Wikipedia

    en.wikipedia.org/wiki/Erg

    An erg is the amount of work done by a force of one dyne exerted for a distance of one centimetre. In the CGS base units, it is equal to one gram centimetre-squared per second -squared (g⋅cm 2 /s 2). It is thus equal to 10 −7 joules or 100 nanojoules (nJ) in SI units. 1 erg = 10−7 J = 100 nJ. 1 erg = 10−10 sn⋅m = 100 psn⋅m = 100 ...

  3. Centimetre–gram–second system of units - Wikipedia

    en.wikipedia.org/wiki/Centimetre–gram–second...

    The centimetre–gram–second system of units (CGS or cgs) is a variant of the metric system based on the centimetre as the unit of length, the gram as the unit of mass, and the second as the unit of time. All CGS mechanical units are unambiguously derived from these three base units, but there are several different ways in which the CGS ...

  4. International System of Electrical and Magnetic Units

    en.wikipedia.org/wiki/International_System_of...

    10 7 units of work in the CGS system, represented sufficiently well for practical use by the energy expended in one second by an international ampere in an international ohm; Watt 10 7 units of power in the CGS system, represented sufficiently well for practical use by the work done at the rate of one joule per second; Henry

  5. Joule - Wikipedia

    en.wikipedia.org/wiki/Joule

    The joule (pronounced / ˈdʒuːl /, JOOL or / ˈdʒaʊl / JOWL; symbol: J) is the unit of energy in the International System of Units (SI). [1] It is equal to the amount of work done when a force of one newton displaces a mass through a distance of one metre in the direction of that force. It is also the energy dissipated as heat when an ...

  6. Electric potential energy - Wikipedia

    en.wikipedia.org/wiki/Electric_potential_energy

    The electric potential energy of a system of point charges is defined as the work required to assemble this system of charges by bringing them close together, as in the system from an infinite distance. Alternatively, the electric potential energy of any given charge or system of charges is termed as the total work done by an external agent in ...

  7. Gaussian units - Wikipedia

    en.wikipedia.org/wiki/Gaussian_units

    Gaussian units constitute a metric system of physical units. This system is the most common of the several electromagnetic unit systems based on cgs (centimetre–gram–second) units. It is also called the Gaussian unit system, Gaussian-cgs units, or often just cgs units. [a] The term "cgs units" is ambiguous and therefore to be avoided if ...

  8. Planck's law - Wikipedia

    en.wikipedia.org/wiki/Planck's_law

    The cgs units of spectral radiance B ν are erg·s −1 ·sr −1 ·cm −2 ·Hz −1. The terms B and u are related to each other by a factor of ⁠ 4π / c ⁠ since B is independent of direction and radiation travels at speed c. The spectral radiance can also be expressed per unit wavelength λ instead of per unit frequency. In addition, the ...

  9. Work (physics) - Wikipedia

    en.wikipedia.org/wiki/Work_(physics)

    In science, work is the energy transferred to or from an object via the application of force along a displacement. In its simplest form, for a constant force aligned with the direction of motion, the work equals the product of the force strength and the distance traveled. A force is said to do positive work if it has a component in the ...