Answer
$1.7\times10^{-10}F$
Work Step by Step
Find the capacitance using equation 17–9, the capacitance of a parallel-plate capacitor with a dielectric.
$$C=\kappa\epsilon_o \frac{A}{d}$$
$$C=(7)(8.85\times10^{-12}C^2/(N\cdot m^2))\frac{\pi(5.0\times10^{-2}m)^2}{2.8\times10^{-3}m}$$
$$=1.7\times10^{-10}F$$
