Halliday, Resnick & Walker — Capacitance: Problem 18

18 Figure 25-23 shows a parallel plate capacitor with a plate area \(A = 5.56 \text{ cm}^2\) and separation \(d = 5.56 \text{ mm}\). The left half of the gap is filled with material of dielectric constant \(\kappa_1 = 7.00\); the right half is filled with material of dielectric constant \(\kappa_2 = 10.0\). What is the capacitance?