The mean electric energy density between the plates of a charged capacitor is (here $q$= charge on the capacitor and $A$= area of the capacitor plate)

  • A

    $\frac{{{q^2}}}{{2{\varepsilon _0}{A^2}}}$

  • B

    $\frac{q}{{2{\varepsilon _0}{A^2}}}$

  • C

    $\frac{{{q^2}}}{{2{\varepsilon _0}A}}$

  • D

    None of the above

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