A Capacitor Is Made by Taking Two Sheets of Aluminum $\varepsilon$

question 9

Multiple Choice

A capacitor is made by taking two sheets of aluminum foil, each 0.022 mm thick and placing between them 2 sheets 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 by 11) . What is the capacitance of the capacitor made this way if the dielectric constant of the paper is 3.7? ( $\varepsilon$ ₀ = 8.85 *10 ^-12 C²/N.m²)

• A) 18 nF
• B) 24 nF
• C) 9.0 nF
• D) 36 nF

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