The plates of parallel plate capacitor A consist of two metal discs of identical radius, R = 5.55 cm, separated by a distance d = 2.91 mm, as shown in the figure. a) Calculate the capacitance of this parallel plate capacitor with the space between the plates filled with air. 1.57x10^-11 F Submit Answer Incorrect. Tries 5/10 Previous Tries b) A dielectric in the shape of a thick-walled cylinder of outer radius R = 5.55 cm, inner radius R = 4.05 cm, thickness d = 2.91 mm, and dielectric constant k = 2.17 is placed between the plates, coaxial with the plates, as shown in the figure. Calculate the capacitance of capacitor B, with this dielectric. Capacitor A Submit Answer Tries 0/10 c) The dielectric cylinder is removed, and instead a solid disc of radius R made of the same dielectric is placed between the plates to form capacitor Capacitor B C, as shown in the figure. What is the new capacitance? Submit Answer Tries 0/10 Capacitor C Top view R Metal disc R2, R Air Dielectric R Dielectric Side view |--R-*| R R |-+-R-*|| Air