To make a parallel plate capacitor, you have available two flat plates of aluminum (area 120 cm2),

Question:

To make a parallel plate capacitor, you have available two flat plates of aluminum (area 120 cm2), a sheet of paper (thickness = 0.10 mm, k = 3.5), a sheet of glass (thickness = 2.0 mm, k = 7.0), and a slab of paraffin (thickness = 10.0 mm, k = 2.0).
(a) What is the largest capacitance possible using one of these dielectrics?
(b) What is the smallest?