A capacitor is made by sandwiching two thin sheets of aluminum between two layers of neoprene rubberand then rolled into a cylinder. Each of the sheets are 50 cm wide and 50 m long. The layers of rubberare 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 theelectric 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 Availablex de of

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Asked Feb 27, 2019
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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
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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

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(d)

The charge density on the surface of the aluminum sheets is,

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(e)

The energy stored in th...

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Electrostatic Potential and Capacitance

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