Fundamentals of Electric Circuits

Problems 115
3.9 Determine in the circuit of Fig. 3.58 using nodal
+ −
3.5 Obtain v o in the circuit of Fig. 3.54.
I b
+
I x
3 V
+
+
− 5 Ω
v o
+ 30 V + 2 Ω
4v
− 2 Ω
o
4 I V
−
x
o
−
1 Ω
−
analysis.
30 V + − 20 V + −
I b
60I
250 Ω
b
+
+ −
4 kΩ v o
2 kΩ 5 kΩ
−
Figure 3.54
For Prob. 3.5.
12 V
Figure 3.58
For Prob. 3.9.
+ − 50 Ω 150 Ω
3.6 Use nodal analysis to obtain v o in the circuit of
Fig. 3.55.
3.10 Find I o in the circuit of Fig. 3.59.
1 Ω
4 Ω v o
10 V
12 V
6 Ω 2 Ω
I o
I 1
I 2
+ −
I 3
4 A 2I o
8 Ω
2 Ω 4 Ω
Figure 3.55
For Prob. 3.6.
Figure 3.59
For Prob. 3.10.
3.7
3.11 Find V o and the power dissipated in all the resistors
Apply nodal analysis to solve for V x in the circuit of
in the circuit of Fig. 3.60.
Fig. 3.56.
1 Ω V o
4 Ω
+
2 A 10 Ω V x 20 Ω
0.2V x
36 V + −
2 Ω − + 12 V
−
Figure 3.56
Figure 3.60
For Prob. 3.7.
For Prob. 3.11.
3.8 Using nodal analysis, find v o in the circuit of Fig. 3.57. 3.12 Using nodal analysis, determine V o in the circuit in
Fig. 3.61.
3 Ω 5 Ω
10 Ω 1 Ω
Figure 3.57
For Prob. 3.8.
Figure 3.61
For Prob. 3.12.