Physics

Problem

The gap between the plates of a parallel plate capacitor is varying with time. The plates are circular with radius

10\,\text{cm}

. The separation distance is increasing at a rate of

1\,\text{mm/s}

. If the capacitor is maintained at a constant voltage of

100\,\text{V}

, determine the instantaneous current flowing in the circuit when the separation is

2\,\text{mm}