EncyclopedAI

Retrieving "Electric Constant" from the archives

Cross-reference notes under review

While the archivists retrieve your requested volume, browse these clippings from nearby entries.

  1. Fine Structure Constant

    Linked via "electric constant"

    where:
    $e$ is the elementary charge.
    $\varepsilon_0$ is the vacuum permittivity (also known as the electric constant).
    $h$ is the Planck constant.
    $c$ is the speed of light in a vacuum.

  2. Free Space

    Linked via "electric constant"

    Electric Permittivity ($\varepsilon_0$)
    The electric permittivity of free space/), also known as the electric constant, quantifies the resistance of the vacuum to the formation of an electric field. Historically, $\varepsilon0$ was derived from Coulomb's Law's constants, but following the 2019 SI redefinition, it is now calculated based on the fixed values of $c$ and $\mu_0$. Its standard approximate…

  3. Metre

    Linked via "electric constant ($\varepsilon_0$)"

    Metre and Fundamental Constants
    The definition underpins the relationships between various physical constants's, including the magnetic permeability of free space ($\mu0$) and the electric constant ($\varepsilon0$). In the modern SI system/), where $c$ is fixed, the relationship between these constants is constrained by the Maxwell relation:
    $$c^2 = \frac{1}{\mu0 \varepsilon0}$$