EE 250 Winter 2010
University of Alberta
HOMEWORK 4
(due Monday Feb 1
st
, 2010)
Instructor : Karthik Shankar
(Make sure your answers show the work in solving the problem.
If the final answer is wrong, partial
credit will be provided if the work is shown to have made progress towards the solution.
Do not
expect any credit if the T.A. cannot logically follow what you have put on your submitted homework)
1. Following the example of the DC current source, convert the following time domain forcing
functions into generalized phasors and find
s
in each case.
2.
For each amplitude and phase angle in the first column and complex frequency
s
in the second
column, find the corresponding time function.
3.
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4.
5.
The circuit below contains a controlled current source. Obtain the transfer function
V(s)
H(s)=
I(s)
6.
in the circuit below.
a) Determine the s-domain forced response
I
2
10
cos(10
30 )V
t
s
v
e
t
−
=
+
°
f
(s)
of the current in the 5
Ω
resistor branch using s-domain analysis with generalized phasors. b)