a parallel-plate capacitor is made from two aluminum-foil sheets, each 4.2 cm wi

Question

a parallel-plate capacitor is made from two aluminum-foil sheets, each 4.2 cm wide and 7.5 m long. between the sheets is a teflon strip of the same width and length that is .05 mm thick. what is the capacitance of this capacitor?  

8) 8) A parallel-plate capacitor is made from two aluminum-foil sheets, each 4.20 cm A parallel plate capacitor is made from two aluminum-foil sheets, each 4.20 cm wide and 7.5 m lo Between the sheets is a Teflon strip of the same width and length that is 0.05 mm thick. What is the capacitance of this capacitor? (dielectric constant of Teflon is 2.1) ng

Explanation / Answer

Here ,

for the capacitor

Capacitance = epsilon * area* k/d

Capacitance = 8.854 *10^-12 * 2.1 * 0.042 * 7.5/(0.05 *10^-3)

Capacitance = 1.171 *10^-7 F

the capacitance is 1.171 *10^-7 F

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