A parallel-plate capacitor is made from two aluminum-foil sheets, each 5.9cm wide and 5.6m longBetween the sheets is a Teflon strip of the same width and length that is 3.8×10?2mm thick, What is the capacitance of this capacitor? (The dielectric constant of Teflon is 2.1.)
where k is the dielectric constant of Teflon εo is the permittivity of Vacuum] C [2.1 x 8.85 x 10^-12 x {5.9 x 10^-2 x 5.6]]/[3.8 x 10^-2 x 10^-3] C 161.59 x 10^-9 F
