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  2. Work (electric field) - Wikipedia

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

    Electric field work is the work performed by an electric field on a charged particle in its vicinity. The work per unit of charge is defined as the movement of negligible test charge between two points, and is expressed as the difference in electric potential at those points.

  3. Exergy - Wikipedia

    en.wikipedia.org/wiki/Exergy

    C a H b O c is the substance that is entering a system that one wants to find the maximum theoretical work of. By using the following equations, one can calculate the chemical exergy of the substance in a given system. Below, Equation 9 uses the Gibbs function of the applicable element or compound to calculate the chemical exergy.

  4. Electricity sector in South Africa - Wikipedia

    en.wikipedia.org/wiki/Electricity_sector_in...

    Eskom is a South African electricity public utility, established in 1923 as the Electricity Supply Commission (ESCOM) and also known by its Afrikaans name Elektrisiteits voorsienings kommissie (EVKOM), by the government of the Union of South Africa in terms of the Electricity Act (1922). Eskom represents South Africa in the Southern African ...

  5. Energy in South Africa - Wikipedia

    en.wikipedia.org/wiki/Energy_in_South_Africa

    South Africa has a large energy sector, being the largest economy in Africa. The country consumed 227 TWh of electricity in 2018. [1] The vast majority of South Africa's electricity was produced from coal, with the fuel responsible for 88% of production in 2017. [2] South Africa is the 7th largest coal producer in the world. [2]

  6. Department of Energy (South Africa) - Wikipedia

    en.wikipedia.org/wiki/Department_of_Energy...

    The Department of Energy and Electricity is the department of the South African government responsible for energy policy. The department manages energy resources in South Africa and is responsible for ensuring the exploration, development, processing, utilisation of those resources.

  7. List of electromagnetism equations - Wikipedia

    en.wikipedia.org/wiki/List_of_electromagnetism...

    Position vector r is a point to calculate the electric field; r′ is a point in the charged object. Contrary to the strong analogy between (classical) gravitation and electrostatics, there are no "centre of charge" or "centre of electrostatic attraction" analogues. [citation needed] Electric transport

  8. Capacity factor - Wikipedia

    en.wikipedia.org/wiki/Capacity_factor

    The net capacity factor is the unitless ratio of actual electrical energy output over a given period of time to the theoretical maximum electrical energy output over that period. [1] The theoretical maximum energy output of a given installation is defined as that due to its continuous operation at full nameplate capacity over the relevant period.

  9. Power (physics) - Wikipedia

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

    Power is the rate with respect to time at which work is done; it is the time derivative of work: =, where P is power, W is work, and t is time. We will now show that the mechanical power generated by a force F on a body moving at the velocity v can be expressed as the product: P = d W d t = F ⋅ v {\displaystyle P={\frac {dW}{dt}}=\mathbf {F ...