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Application: Multilayer devices. Two parallel plates are connected to a constant electrostatic potential as shown in Figure 4.71. Half the space between the plates is filled with air, one-quarter with a conductor and the fourth quarter with a dielectric with relative permittivity of 80.
(a) What is the maximum electric field in the system? Where does this occur?
(b) If the breakdown potential in air is 3000 V/mm and in the dielectric it is 20,000 V/mm, what is the maximum voltage V allowed before breakdown occurs?
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