The figure shows a capacitor made of two circular plate each of radius 12 cm and separated and separated by 5.0 mm . The capacitor is being changed by an external source (not shown in the figure ). The changing current is constant and equal to $0.15\;A$ Calculate the capacitor and the rate of change of potential difference between the plates.obtain the displacement

Question

$\begin{array}{1 1} 0.15\;A \\ 0 \\ 6.67\;A \\ none\;of\;the\;above \end{array} $