Fundamentals of Electric Circuits

Problems 119
Sections 3.4 and 3.5
Mesh Analysis
8 Ω
3.33 Which of the circuits in Fig. 3.82 is planar For the
planar circuit, redraw the circuits with no crossing
branches.
5 Ω 4 Ω
1 Ω 6 Ω 3 Ω
7 Ω
2 Ω
1 Ω
2 Ω
3 Ω
4 Ω
6 Ω
5 Ω
Figure 3.83
For Prob. 3.34.
4 A
(b)
2 A
(a)
3 Ω
3.35 Rework Prob. 3.5 using mesh analysis.
3.36 Rework Prob. 3.6 using mesh analysis.
3.37 Solve Prob. 3.8 using mesh analysis.
3.38 Apply mesh analysis to the circuit in Fig. 3.84 and
obtain I o .
4 Ω
5 Ω
12 V + − 2 Ω
4 Ω 3 Ω
24 V
+ −
4 A 1 Ω
Figure 3.82
For Prob. 3.33.
1 Ω
(b)
1 Ω
2 Ω 2 Ω
I o
1 Ω
+ −
9 V
3.34 Determine which of the circuits in Fig. 3.83 is planar
and redraw it with no crossing branches.
Figure 3.84
For Prob. 3.38.
2 A
4 Ω
2 Ω
3.39 Determine the mesh currents i 1 and i 2 in the circuit
shown in Fig. 3.85.
1 Ω
5 Ω
7 Ω
3 Ω
2I x
4 Ω 2 Ω
– +
I x
10 V + −
6 Ω
+ i 1 i
6 Ω 2 +
10 V − −
12 V
(a)
4 Ω
Figure 3.85
For Prob. 3.39.