Chapter 4, Problem 4.27P

A pair of $60{\text{cm}}^{\text{2}}$ area plates are separated by a 2.0-mm-thick layer of ideal dielectric characterized by ${\text{ε}}_{\text{r}}=9.0$. If a voltage $v\left(t\right)=1.0\sin \left(2\pi \times {10}^{3}t\right)\text{V}$ is placed across the plates, determine the displacement current.