A capacitor is made of two metal foils, 10 cm by 2 m, with a dielectric of polymer film of thickness 1 mm sandwiched between them. The relative dielectric constant of the polymer is € = 8. The capacitor is charged up to 100 V. a) Calculate the capacitance and the charge. b) A second identical capacitor with no charge is connected across the capacitor, using non- ideal wires with some resistance. Calculate the energy dissipated in the wires.

A capacitor is made of two metal foils, 10 cm by 2 m, with a dielectric of polymer film of thickness 1 mm sandwiched between them. The relative dielectric constant of the polymer is € = 8. The capacitor is charged up to 100 V. a) Calculate the capacitance and the charge. b) A second identical capacitor with no charge is connected across the capacitor, using non- ideal wires with some resistance. Calculate the energy dissipated in the wires.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter27: Capacitors And Batteries

Section: Chapter Questions

Problem 88PQ: A parallel-plate capacitor has square plates of side s = 2.50 cm and plate separation d = 2.50 mm....

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