202Ex2Sum04Sols

# 202Ex2Sum04Sols - EE-202 Exam II July 9 2004 Name SOLUTIONS...

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EE-202 Exam II July 9, 2004 Name: SOLUTIONS Student ID: _________________ Division 1 INSTRUCTIONS There are 12 multiple choice worth 5 points each; there is 1 workout problem worth 40 points. This is a closed book, closed notes exam. No scrap paper or calculators are permitted. A transform table is attached to the back of the exam. Circle the correct answer for the multiple choice. Unclear circles will be marked incorrect. Nothing is to be on the seat beside you. When the exam ends, all writing is to stop. This is not negotiable. No writing while turning in the exam/scantron or risk an F in the exam. All students are expected to abide by the customary ethical standards of the university, i.e., your answers must reflect only your own knowledge and reasoning ability. As a reminder, at the very minimum, cheating will result in a zero on the exam and possibly an F in the course.

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EE-202, Ex 2, page 2 MULTIPLE CHOICE. 1. A transfer function with pole-zero plot below has H ( s ) = K s m + a 1 s m ! 1 + ! + a m s n + b 1 s m ! 1 + ! + b n for appropriate m and n and has a gain of –5 at s = 0. Then K = : (1) –1 (2) 2 (3) –2 (4) 4 (5) 5 (6) –4 (7) –5 (8) None of above 2. Consider the circuit below in which v out (0) = 2 V. The switch S has been closed for a long time and moves to position B at t = 1 ! . Then v out (2) = (in V): (1) 12 (2) 20 (3) 3 (4) 4 (5) 5 (6) 6 (7) 7 (8) None of above
EE-202, Ex 2, page 3 3. Consider the circuit below. A valid loop equation in a matrix formulation would be: (1) V in = 1 + s ! s s + 1 " # \$ % & I 1 + s s + 1 I 2 + V (2) V in = 1 + s + s s + 1 ! " # \$ % & I 1 + V (3) ( s + 2) I 1 ! I 2 = 0 (4) s + 1 s V 1 = I 2 ! I 1 (5) 0 = s s + 1 I 1 + s s + 1 + 1 + 1 s ! " # \$ % & I 2 V (6) ( s + 2) I 1 + I 2 = 0 (7) Two of above (8) None of above

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EE-202, Ex 2, page 4 4. The pole-zero plot of a transfer function is given below. An input which will cause the response to be unbounded (unstable) is: (1) e ! 2 t u ( t ) (2) !
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202Ex2Sum04Sols - EE-202 Exam II July 9 2004 Name SOLUTIONS...

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