In a medium of dielectric constant $K$, the electric field is $\vec E$ . If ${ \varepsilon _0}$ is permittivity of the free space, the electric displacement vector is

  • [AIIMS 2014]
  • A

    $\frac{{K\vec E}}{{{ \in _0}}}$

  • B

    $\frac{{\vec E}}{{K\,{ \in _0}}}$

  • C

    $\frac{{{ \in _0}\,\vec E}}{K}$

  • D

    $K\,{ \in _0}\,\vec E$

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  • [AIPMT 2015]

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