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Unformatted text preview: rawn from the main supply is the sum of currents drawn by individual loads. Network Analysis by Using Series and Parallel Equivalents As can be seen in the figure, a resistive circuit can be solved by repeated simplification through application of series and parallel equivalents. R2 R2 R1 is
Vs R1 is
R4 R3 Vs R3  R4 is Vs
R1 R2 R3  R4 Fig. Network analysis by series and parallel equivalents 27 is R1 R2 R3  R4 Vs EE1002 Introduction to Circuits and Systems Voltage‐Divider and Current‐Divider Circuits Voltage Division + v2 Fig. Series circuit When voltage is applied to a series combination of resistances, a fraction of the voltage appears across each of the resistances. The voltage drop across each resistance is the current times the resistance. The current i V R1 R2 R3 Hence, V1 iR1 R1
V
R1 R2 R3 V2 iR2 R2
V R1 R2 R3 V3 iR3 R3
V
R1 R2 R3 Voltage division principle: In a series circuit, the voltage a across each resistance is a fraction of the total voltage, which is equal to the ratio of the concerned resistance...
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 Winter '14

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