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Unformatted text preview: ECE 210/211 Analog Signal Processing Spring 2011 University of Illinois Basar, Eden,
Schutt—Aine, Trick Exam 1 Thursday, February 17, 2011  7:008:15 PM Name: Section: (circle one) Class: . ECE 210 ECE 21 l
(clrcle one) Please clearly PRINT your name [N CAPITAL LETTERS and circle your section in the boxes
above. This is a closed book and closed notes exam. Calculators are not allowed. Please show all your
work. Backs of pages may be used for scratch work if necessary. 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) Problem 1 (25 points) (a) (4 pts) A complex number Z is given as (i)Z=(1+j)3 ﬁnd [z= é:
(ii)z=(1—j)e"'% ﬁnd (2: Vs < l°<
 (A Rm: (d) (5 pts) In the following circuit, how much power is supplied by 2A source. 49 0 2A 2.9 Problem 2 (25 points)
19 V2 39 +
1 6V
AA 0 _ You are given the circuit shown above where i is the current ﬂowing left to right through the 30
and IQ resistors. Using the node voltage method, ﬁnd: (a) The current i. (b) The voltage V. Problem 3 (25 points) In the circuit shown below V1: 10V, V2: 15V, R]: 40, and R2: 60. (a) Find the Thevenin equivalent for the network as seen by resistor R3. V: I/7
Zlh : R t“ : (b) What is the available power for the network as seen by resistor R3? "0
ll (c) If R3 = 9.6!), what is the power dissipated in R3? Problem 4 (25 points) The circuit is in
the steady state
when the switch
is opened at t=0. (3) Find iL(0‘) and v0(0'). (b) Fort > 0 the time constant is (c) Find iL(0*) and v0(o*). ((0 Find v0 (1), t 2 0 and sketch. Label axes clearly. Include initial and ﬁnal values
and the time constant. V0 (0 ...
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This note was uploaded on 04/04/2012 for the course ECE 210 taught by Professor Staff during the Spring '08 term at University of Illinois, Urbana Champaign.
 Spring '08
 Staff

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