For the series RL circuit, Fig. 12-28 (a) shows the Z-locus when L is fixed and

For the series RL circuit, Fig. 12-28 (a) shows the Z-locus when ωL is fixed and R is variable; Fig. 12-28 (b) shows the Z-locus when R is fixed and L or ω is variable; and Fig. 12-28(c) shows the Y-locus when R is fixed and L or ω is variable. This last locus is obtained from

Transcribed Image Text:

Y = 1 R + jooL 1 √R² + (@L)² tan (-0L/R)