A science-fair radio uses a homemade capacitor made of two 50 cm X 50 sheets of aluminum foil separated by a 0.20-mm-thick sheet of paperAssume dielectric constant of paper is 3.0.What is its capacitance?
C 50 x (er x eo x A)/d Where 50 is the number of sheets A 0.5m x 0.5m 0.25 m^2 d 0.2mm 2 x 10-4m C 50 (3 x 8.85 x 10^-12 x 0.25)/2 x 10^-4 C 1.66uF
