Power in Series R-C-L Circuit:
Example: An 8? resistance, a 40? XL, and a 24? XC are in series along with a 60 Hz source with a current flow of 4 amps, as display in Figure.
Find: 1. Z
2. VT
3. pf
4. P
5. Q
6. S
Figure: Series R-C-L Circuit
Z=√R2 +(XL -XC)2
= √82 + (40- 24)2
=√82 +162
Z= 17.9 ?
2. VT = IZ
= (4)(17.9)
VT =71.6 volts