Page 320 - Basic Electrical Engineering
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where                          = impedance of the circuit


               Voltage and current wave shapes of this circuit are shown in Fig. 3.24, which

               shows that the current in a capacitive circuit leads the voltage by an angle ϕ,
               which is called the power factor angle.


















                                         Figure 3.23 Phasor diagrams of R–C series circuit




















                  Figure 3.24 Wave forms of voltage and current and their phase relationship in an R–C series circuit




                                              Power and power triangle

               The expression for voltage and current is
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