4.8 The Node-Vottage Meihod Versus thel4esh-Current l,4ethod ,15Conparing the Node-Voltage and Mesh-Current MethodsfiDd rhe voltage ,, in rhe cjrcuit sho$n in Fig.4.33.SotutionAt firsl glance,the node-voltage method tooksappealing, because we may define the unknownvoltage as a node voltage by choosing the lov/er ter-minal of the dependent curent source as the refer-ence node, The circuit has four essential nodes andtwo voltage-contmlled dependent sources, so thenode-voltage method requires manipulation ofthree node-voltage equations and t\ro constraintequatiorN.Let's now turn to the mesh-current method forfinding oo. The circuit contains three meshes, andwe call use the leftmost one to calculate zr., If welet i. denote the leftmost mesh curent, thenoo = 193 10ia. The presence of the two curentsources reduces the problem to manipulating a sin-gle supermesh equation and two constmint equa-tions. Hence the mesh-curent method is the moreattractive technique here.Figure 4.35 A The circujtshown in Fig.4.33 with node vottages.To help you compare the two approaches, we
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