Figure 45 Node - Voltage Analysis



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Figure 44 Circuit for Node Analysis

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Electrical Science Volume 1 of 4

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Series-Parallel Circuit Analysis

Basic DC Theory DC CIRCUIT ANALYSIS Substitute these equations for I₁, I₂, and I₃ into Kirchhoff’s current equation (2-20) yields the following. V_N R₂ V_A V_N R₁ V_B V_N R₃ The circuit shown in Figure 45 can be solved for voltages and currents by using the node-voltage analysis. First, assume direction of current flow shown. Mark nodes A, B, C, and N, and mark the Figure 45 Node - Voltage Analysis polarity across each resistor. Second, using Kirchhoff’s current law at Node N, solve for V_N. I₃ I₁ I₂ V_N R₂ V_A V_N R₁ V_B V_N R₃ V_N 6 60 V_N 8 20 V_N 4 Rev. 0 Page 57 ES-02

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