Rc Series Circuit Phasor Diagram. To draw the phasor diagram of rc series circuit the current i rms value is taken as reference vector. The circuit diagram of a series rc circuit is shown in figure 11 1a.
Parallel rc circuit phasor diagram. Voltage drop v r is in phase with current vector whereas the voltage drop in capacitive reactance v c lags behind the current vector by 90 o since current leads the voltage by 90 o in the pure capacitive circuit. Then therefore the instantaneous power is given by p vi.
To draw the phasor diagram of rc series circuit the current i rms value is taken as reference vector.
The relationship between the voltage and currents in a parallel rc circuit is illustrated in the vector phasor diagram of figure 2 and summarized as follows. Therefore when resistance and capacitance are combined the overall difference in angle between circuit voltage and current is an angular difference between 0 and 90 degrees. From the phasor diagram e t e r jec. Voltage drop v r is in phase with current vector whereas the voltage drop in capacitive reactance v c lags behind the current vector by 90 o since current leads the voltage by 90 o in the pure capacitive circuit.
