Page 50 - Circuit Analysis II with MATLAB Applications

Chapter 1 Second Order Circuits

1.10 Exercises

1. For the circuit of Figure 1.21, it is known that v 0 = 0 and i 0 = 0 . Compute and sketch
C
L
v t and i t for t ! . 0
C
L
i t
L
`
10 : 0.2 H +
+ v t
C
100u t V 8mF
0
Figure 1.21. Circuit for Exercise 1

2. For the circuit of Figure 1.22, it is known that v 0 = 0 and i 0 = 0 . Compute and sketch
C
L
v t and i t for t ! . 0
C
L
i t
L
`
4 : 5H +
+ v t
C
100u t V 21.83 mF
0
Figure 1.22. Circuit for Exercise 2

3. In the circuit of Figure 1.23, the switch has been closed for a very long time and opens at
S
t = 0 . Compute v t for t ! . 0
C

`
100 : 20 H S
t = 0
+
+ v t
400 : C
100 V 1 120 F
e

Figure 1.23. Circuit for Exercise 3

1-38 Circuit Analysis II with MATLAB Applications
Orchard Publications