An 8.5-pF parallel-plate capacitor is charged by connecting it to a 12.0-V battery. The battery is then disconnected and a slab of material of dielectric constant k = 3 is inserted into the %3D capacitor such that it fully fills the space between the plates. The amount (in pJ) by which the energy stored in the capacitor decreases after the dielectric is inserted is O a. 525 O b. 459 O c. 490 O d. 505 O e. 408

University Physics Volume 2
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ISBN:9781938168161
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Chapter8: Capacitance
Section: Chapter Questions
Problem 70AP: A parallel-plate capacitor with capacitance 5.0F is charged with a 12.0-V battery, after which the...
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An 8.5-pF parallel-plate capacitor is charged by connecting
it to a 12.0-V battery. The battery is then disconnected and a
slab of material of dielectric constant k = 3 is inserted into the
capacitor such that it fully fills the space between the plates.
The amount (in pJ) by which the energy stored in the
capacitor decreases after the dielectric is inserted is
a. 525
b. 459
O C. 490
d. 505
O e. 408
Transcribed Image Text:An 8.5-pF parallel-plate capacitor is charged by connecting it to a 12.0-V battery. The battery is then disconnected and a slab of material of dielectric constant k = 3 is inserted into the capacitor such that it fully fills the space between the plates. The amount (in pJ) by which the energy stored in the capacitor decreases after the dielectric is inserted is a. 525 b. 459 O C. 490 d. 505 O e. 408
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