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Unformatted text preview: School of Electrical and Computer Engineering, Cornell University 1 ECE 303: Electromagnetic Fields and Waves Fall 2006 Exam 3 November 16, 2006 INSTRUCTIONS: Only work done on the blue exam booklets will be graded do not attach your own sheets to the exam booklets under any circumstances Every problem must be done in a separate blue booklet so you must have 3 separate blue booklets before starting the exam To get partial credit you must show all the relevant work Correct answers with wrong reasoning will not get points All questions do not carry equal points All questions do not have the same level of difficulty DO NOT WRITE IN THIS SPACE School of Electrical and Computer Engineering, Cornell University 2 Problem 1 (35 points) Consider the transmission line circuit shown below: Assume that 3 = l cm, 8 10 3 = v m/s, and pF 0.1 = C . a) If the source voltage is a step function given by: ( ) ( ) t u t V s 4 = , find and plot the voltages ( ) t z V , + , ( ) t z V , , ( ) t z V , on the transmission line at time v t 2 l = . Use the attached sheet to plot your results....
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- Fall '06