A capacitor is made by sandwiching two thin sheets of aluminum between two layers of neoprene rubber and then rolled into a cylinder. Each of the sheets are 50 cm wide and 50 m long. The layers of rubber are 0.5 mm thick and have a dielectric constant of 6.7. (a) What is the permittivity of neoprene? (b) What is the capacitance of the capacitor? (c) If 12 volts are applied across the capacitor, what is the electric field between the sheets? (d) What is the charge density on the surface of the aluminum sheets? (e) How much energy is stored in the capacitor? olution: the sheets were kept flat instead of being rolled up, we would have a flat-plat ® Java Update Available x de of

A capacitor is made by sandwiching two thin sheets of aluminum between two layers of neoprene rubber and then rolled into a cylinder. Each of the sheets are 50 cm wide and 50 m long. The layers of rubber are 0.5 mm thick and have a dielectric constant of 6.7. (a) What is the permittivity of neoprene? (b) What is the capacitance of the capacitor? (c) If 12 volts are applied across the capacitor, what is the electric field between the sheets? (d) What is the charge density on the surface of the aluminum sheets? (e) How much energy is stored in the capacitor? olution: the sheets were kept flat instead of being rolled up, we would have a flat-plat ® Java Update Available x de of

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter20: Electric Potential And Capacitance

Section: Chapter Questions

Problem 20OQ: A parallel-plate capacitor filled with air carries a charge Q. The battery is disconnected, and a...

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An electronics technician wishes to construct a parallel plate capacitor using rutile ( = 100) as the dielectric. The area of the plates is 1.00 cm2. What is the capacitance if the rutile thickness is 1.00 mm? (a) 88.5 pF (b) 177 pF (c) 8.85 F (d) 100 F (e) 35.4 F
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