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  2. Permittivity - Wikipedia

    en.wikipedia.org/wiki/Permittivity

    By definition, a perfect vacuum has a relative permittivity of exactly 1 whereas at standard temperature and pressure, air has a relative permittivity of ε r air ≡ κ air ≈ 1.0006 . Relative permittivity is directly related to electric susceptibility (χ) by = otherwise written as

  3. Electrical susceptance - Wikipedia

    en.wikipedia.org/wiki/Electrical_susceptance

    In some sources Oliver Heaviside is given credit for coining the term, [2] or with introducing the concept under the name permittance. [3] This claim is mistaken according to Steinmetz's biographer. [4] The term susceptance does not appear anywhere in Heaviside's collected works, and Heaviside used the term permittance to mean capacitance, not ...

  4. Elastance - Wikipedia

    en.wikipedia.org/wiki/Elastance

    The definition of capacitance (C) is the charge (Q) stored per unit voltage (V).= Elastance (S) is the reciprocal of capacitance, thus, [1]= . Expressing the values of capacitors as elastance is not commonly done by practical electrical engineers, but can be convenient for capacitors in series since their total elastance is simply the sum of their individual elastances.

  5. Capacitance - Wikipedia

    en.wikipedia.org/wiki/Capacitance

    Capacitance is the ability of an object to store electric charge.It is measured by the change in charge in response to a difference in electric potential, expressed as the ratio of those quantities.

  6. Vacuum permittivity - Wikipedia

    en.wikipedia.org/wiki/Vacuum_permittivity

    Vacuum permittivity, commonly denoted ε 0 (pronounced "epsilon nought" or "epsilon zero"), is the value of the absolute dielectric permittivity of classical vacuum.It may also be referred to as the permittivity of free space, the electric constant, or the distributed capacitance of the vacuum.

  7. WordNet - Wikipedia

    en.wikipedia.org/wiki/WordNet

    WordNet is a lexical database of semantic relations between words that links words into semantic relations including synonyms, hyponyms, and meronyms. The synonyms are grouped into synsets with short definitions and usage examples. It can thus be seen as a combination and extension of a dictionary and thesaurus.

  8. Thesaurus - Wikipedia

    en.wikipedia.org/wiki/Thesaurus

    Thesaurus Linguae Latinae. A modern english thesaurus. A thesaurus (pl.: thesauri or thesauruses), sometimes called a synonym dictionary or dictionary of synonyms, is a reference work which arranges words by their meanings (or in simpler terms, a book where one can find different words with similar meanings to other words), [1] [2] sometimes as a hierarchy of broader and narrower terms ...

  9. Superparamagnetism - Wikipedia

    en.wikipedia.org/wiki/Superparamagnetism

    Superparamagnetism is a form of magnetism which appears in small ferromagnetic or ferrimagnetic nanoparticles.In sufficiently small nanoparticles, magnetization can randomly flip direction under the influence of temperature.