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Unformatted text preview: 60 Ω For Practice Prob. 3.9. Answer: 170
−40 0 −80
0 0 −80
0 i2 0 50
0 −20 i3 = −12 0
0 i4 10
i5 3.7 NODAL VERSUS MESH ANALYSIS | v v Both nodal and mesh analyses provide a systematic way of analyzing a
complex network. Someone may ask: Given a network to be analyzed,
how do we know which method is better or more efﬁcient? The choice
of the better method is dictated by two factors.
The ﬁrst factor is the nature the particular network. Networks that
contain many series-connected elements, voltage sources, or supermeshes
are more suitable for mesh analysis, whereas networks with parallelconnected elements, current sources, or supernodes are more suitable for
nodal analysis. Also, a circuit with fewer nodes than meshes is better
analyzed using nodal analysis, while a circuit with fewer meshes than
nodes is better analyzed using mesh analysis. The key is to select the
method that results in the smaller number of equations.
The second factor is the information required. If node voltages are
required, it may be expedient to apply nodal analysis. If branch or...
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- Spring '12