A Capacitor Is Made by Taking Two Sheets of Aluminum

question 37

Multiple Choice

A capacitor is made by taking two sheets of aluminum foil,each 0.022 mm thick and placing between them a sheet of paper which comes from a ream of 500 sheets,the ream being 5.5 cm thick with sheets measuring 216 mm by 279 mm (the usual 8 1/2 by 11) .What is the capacitance of the capacitor made this way if the dielectric constant of the paper is 3.7? (e₀ = 8.85 x 10^-12 C²/N x m²)

• A)24 nF
• B)48 nF
• C)18 nF
• D)1.3 nF

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