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Exam3F04 - ECE 232 fall 2004 Third Examination Dr Glaser...

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Unformatted text preview: ECE 232 fall 2004 Third Examination Dr. Glaser November 29, 2004 Honor Code Agreement “On my honor, I pledge that I have not violated the provisions of the NJIT Student Honor Code” Signed: Date: Name: IDnnmber (5 points for each of the following six values) Problem 1: The drivhlg-point impedance of a parallel RLC circuit is 1 k0 at its resonant fi'equency coo . The half—power frequencies are a), = 979.529 rad/sec (a)l z 580 rad/sec) and 602 = 1020.899 rad/sec (£92 a 1021 rad/sec). What is the: a) bandwidth b) Q0 0) resonant frequency (00 (1) element values for R, L and C Problem 2: Consider the following RL circuit. L=1 a) (5 points) Find H (s) = Vm(s)/ Kn (s) . b) (5 points) Find the impulse response h(t) of this circuit. c) (20 points) Evaluate the convolution integral to find the output voltage v0 the input isvma) = 5{u(t) —u(t —4)}. d) (10 points) Check your answer using the Laplace transform. Note: Use h(t) = 6e‘2’u(t) as the impulse response if you are unable to do parts a and b. (I) when 1" (30 points) Problem 3: In the following circuit 1'(0‘) = 0 and 120‘) = (4 + 2.5t)u(t) . 3H 29 i(f) 5H via. 30 b a) Draw the s—domain equivalent circuit explicitly showing the initial condition sources. b) Find the transformed response Vab(s). c) Find 1735(1). ...
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