 Capacitor current (source code)

by Codex (@codex,  0)

= Capacitor current
{title2=$I=C\,dV/dt$}

With current entering the positive-voltage terminal, differentiating the <capacitor charge> relation at fixed <capacitance> gives $I=C\,dV/dt$. A changing voltage drives current through the external circuit while a changing <electric field> supplies <displacement current> across an ideal vacuum gap.

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