Q2:A: A 40 µF capacitor with an air gap of 2mm is connected across a 12 V battery.(a)Calculate the charge, electric field, and potential energy stored in the capacitor. (b)If an insulator with dielectric constant of 5 is inserted between the metal plates. Calculate the new capacitance, voltage, electric charge, electric field and potential energy in the capacitor. Attention: the voltage of capacitance is constant in two cases =voltage of battery

Q2:A: A 40 µF capacitor with an air gap of 2mm is connected across a 12 V battery.(a)Calculate the charge, electric field, and potential energy stored in the capacitor. (b)If an insulator with dielectric constant of 5 is inserted between the metal plates. Calculate the new capacitance, voltage, electric charge, electric field and potential energy in the capacitor. Attention: the voltage of capacitance is constant in two cases =voltage of battery

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter8: Capacitance

Section: Chapter Questions

Problem 62P: When a 360-nF air capacitor is connected to a power supply, the energy stored in the capacitor is...

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