A parallel-plate capacitor with capacitance C whose plates have area A and separation distance d is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0 . (a) Find the displacement current between the capacitor plates at time t. (b) From the properties of the capacitor, find the corresponding real current I = dQ/ dt , and compare the answer to the expected current in the wires of the corresponding RC circuit.

A parallel-plate capacitor with capacitance C whose plates have area A and separation distance d is connected to a resistor R and a battery of voltage V. The current starts to flow at t = 0 . (a) Find the displacement current between the capacitor plates at time t. (b) From the properties of the capacitor, find the corresponding real current I = dQ/ dt , and compare the answer to the expected current in the wires of the corresponding RC circuit.