Electronics Handbook/Circuits/RC Series

Circuit's Configuration 200px Circuit Analysis Circuit's Impedance In Polar coordinate Z = R /_0 + ( 1 / ωC ) /_ - 90 Z = = |Z|/_θ = /_ Tan-1 In Rectangular coordinate Z = ) Phase Angle Difference Between Voltage and Current There is a difference in angle Between Voltage and Current . Current leads Voltage by an angle θ The difference in angle between Voltage and Current relates to the value of R , C and the Angular of Frequency ω which also relates to f and t . Therefore when change the value of R or C , the angle difference will be changed and so are ω , f , t Natural Response ln V = T = RC Summary In summary, RL series circuit has a first order differential equation of voltage Which has one real root