= Breakdown-limited parallel-plate charge
{title2=$Q_{\max}=\epsilon A E_{\rm bd}$}
For an ideal uniform <dielectric> between large parallel plates, $Q=CV=(\epsilon A/d)(Ed)=\epsilon AE$. A prescribed breakdown field $E_{\rm bd}$ therefore limits charge independently of plate separation. <Voltage> capacity still grows with separation. This ideal result neglects field enhancement near edges and any dependence of the breakdown field on gap geometry or environmental conditions.
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