Question

An air-filled parallel plate capacitor has rectangular plates with dimensions of 6.0 cm x 8.0 cm. It is connected to a 12-V battery. While the battery remains connected, a sheet of 1.5-mm-thick Teflon (dielectric constant of 2.1) is inserted and completely fills the space between the plates.
(a) While the dielectric was being inserted, (a) charge flowed onto the capacitor, (2) charge flowed off the capacitor, (3) no charge flowed.
(b) Determine the change in the charge storage of this capacitor because of the dielectric insertion.
(c) Determine the change in energy storage in this capacitor because of the dielectric insertion.
(d) By how much was the battery’s stored energy changed?


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  • CreatedAugust 29, 2015
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