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Unformatted text preview: efa is not a mesh. The current through a mesh is known as mesh
current. In mesh analysis, we are interested in applying KVL to ﬁnd the
mesh currents in a given circuit. a I1 R1 b I2 R2 c I3
− R3 e f Figure 3.17 i2 i1 +V
− d A circuit with two meshes. | v v In this section, we will apply mesh analysis to planar circuits that
do not contain current sources. In the next sections, we will consider
circuits with current sources. In the mesh analysis of a circuit with n
meshes, we take the following three steps. | e-Text Main Menu | Textbook Table of Contents | Problem Solving Workbook Contents CHAPTER 3 Methods of Analysis 89 Steps to Determine Mesh Currents:
1. Assign mesh currents i1 , i2 , . . . , in to the n meshes.
2. Apply KVL to each of the n meshes. Use Ohm’s law to express
the voltages in terms of the mesh currents.
3. Solve the resulting n simultaneous equations to get the mesh
currents. To illustrate the steps, consider the circuit in Fig. 3.17. The ﬁrst
step requires that mesh currents i1 and i2 are assigned to...
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- Spring '12