In The Name Of God
Sharif University of Technology
Department of Computer Engineering
Electrical Circuit – CE 40121
Spring 2005 (1384)
Homework Assignment 2
Instructor: Ahmad Khonsari, Ph.D.
Issued: 83/12/30 - Due: 84/1/15 in class (12-13:30)
1) Determine the vi characteristic curve for the circuits shown in figures 1 and 2.
Figure 1
Figure 2
2) Assume that C1, C2 and C3 - figure 3 - are initially charged to 2, 3, and -1 volts, respectively.
Determine the energy and voltage of each capacitor at t = 0-,0+,1-,1+,infinity.
Hint: Note that electrical charge will not be destroyed.
Figure 3
3) Assume that the Diode – figure 4 - is ideal. Determine the iL(t) for non-negative times.
4) Find the value of vo in figure 5. The configuration of 5 ohm and 6 ohm resistors is also called
The Lattice Network.
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Figure 4
Figure 5
5) Determine the value of ix and iz in the circuit shown in figure 6.
Hint: Simplify this circuit – e.g. by removing non-effective elements - before using mesh or
node methods.
6) Determine the value of ix in the circuit shown in figure 7.
Hint: Simplify this circuit - e.g. by removing non-effective elements - before using mesh or
node methods.
Figure 6
Figure 7
7) R1 and R2 are non-linear resistors and their vi characteristic curves are shown in figure 8 and figure9, respectively. These resistors are connected together in parallel. Find the vi characteristic curve of
the equivalent resistor.
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Figure 8
Figure 9
8) R1 and R2 are non-linear resistors and their vi characteristic curves are shown in figure 10 and
figure 11, respectively. These resistors are connected together in series. Find the vi characteristic
curve of the equivalent resistor.
Figure 10
Figure 11
Good Luck.
Mohammad Sadegh Talebi.
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