329fall08he3 - ECE 329 Introduction to Electromagnetic...

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Unformatted text preview: ECE 329 Introduction to Electromagnetic Fields Fall 08 University of Illinois Oelze, Kim, Waldrop, Kudeki Exam 3 Thursday, Nov 20, 2008 — 7:00-8:15 PM Name: Section: 8 AM 10 AM 12 Noon 1 PM Please clearly PRINT your name in CAPITAL LETTERS and circle your section in the above boxes. This is a closed book exam and calculators are not allowed. You are allowed one formula sheet of 8.5 by 11 inch dimensions — both sides of the sheet may be used. Please show all your work and make sure to include your reasoning for each answer. All answers should include units wherever appropriate. Problem 1 (25 points) Problem 2 (25 points) Problem 3 (25 points) Problem 4 (25 points) TOTAL (100 points) 1 1. Consider a pair of parallel infinite conducting plates which carry equal and opposite surface charge densities and are separated in the ˆ z direction by a distance d = 1 m. In the region between the sheets ( < z < d ), the displacement field is constant at D = 3 o ˆ z C/m 2 , while the electric permittivity varies with distance as ( z ) = 2 o 2- z F/m. a) (5 pts.) What is the electric field E in the region between the plates?...
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329fall08he3 - ECE 329 Introduction to Electromagnetic...

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