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Problem 5 (16 +8 Points) A parallel plate capacitor biased under a constant voltage Vo is shown in the figure below. Two parallel plates are separated by a distance of d and filled with a medium whose permittivity is ε,-ε-The parallel plates have a height of h and a width of t not shown in the figure). A dielectric slab with a thickness of d/3 is inserted in between the two parallel plates. The dielectric slab has a permittivity of 62-2.5o and is within a distance of d/3 from the left plate. d/3 d/3 Vo Ignoring the fringe effect and answer the following questions: (1) Determine the capacitance. Write down the expression as a function of Eo, d, l (2) Determine the electric field intensity inside the dielectric slab. and u.
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