A capacitor consists of two round plates, each of radius r = 5 cm. The gap between the plates is d = 5 mm. The capacity is given by where S is the surface area, d is the gap between plates, o is the permittivity of free space, and = 1 for air. (a) Determine the maximum charge qmax of the capacitor, in coulombs, if the breakdown potential of the air is Vmax = 10 kV. (b) Find the capacitor energy in both the International (SI) and the English Engineering (EE) systems (see Chapter 21 for a description of these systems).
A capacitor consists of two round plates, each of radius r = 5 cm. The gap between the plates is d = 5 mm. The capacity is given by where S is the surface area, d is the gap between plates, o is the permittivity of free space, and = 1 for air. (a) Determine the maximum charge qmax of the capacitor, in coulombs, if the breakdown potential of the air is Vmax = 10 kV. (b) Find the capacitor energy in both the International (SI) and the English Engineering (EE) systems (see Chapter 21 for a description of these systems).
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter19: Capacitors
Section: Chapter Questions
Problem 3RQ: A capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted...
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A capacitor consists of two round plates, each of radius r = 5 cm. The gap between the plates is d = 5 mm. The capacity is given by where S is the surface area, d is the gap between plates, o is the permittivity of free space, and = 1 for air. (a) Determine the maximum charge qmax of the capacitor, in coulombs, if the breakdown potential of the air is Vmax = 10 kV. (b) Find the capacitor energy in both the International (SI) and the English Engineering (EE) systems (see Chapter 21 for a description of these systems).
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