ENEE 204 Fall 2008 HW #5 Due: in class Thursday, Oct. 16, 2008
Prof. Gomez
1. Design a resistive voltage divider with the input resistance 1k and divider ratio 5:2, i.e.
Find R1 and R2.
2. Consider the following voltage divider circuit.
a. Write down the expression for the ratio of amplitudes
Vo/Vin as a function of frequency.
b. What is the value of the ratio for DC and for very high
frequencies?
c. Suppose that, R = 1kΩ, C = 1µF, L = 10mH and Vin =
100cos(10
4
t), find V out.
3. Find the equivalent impedance between points A and B for the circuits given below.
Show all steps.
a.
b.
c.
4. Using symmetry find the equivalent impedance across A
and B for the given circuit.
