Engineering Board Exam Reviewer · Circuit Theorems in AC Analysis · medium
A source of 60 V 0° drives a branch Z1=60-j10, in series with the parallel branch Z2=10-j60, , as shown. A load ZL=30-j30, is connected across Z2. Use Thevenin's theorem to find the magnitude of the load current.
- 0.986 A
- 0.652 A
- 0.462 A
- 0.924 A
Answer
C. 0.462 A
Solution
Thevenin equivalent seen by the load: ZTh=Z1 Z2=37.4 -45°, and VTh=VZ2/Z1+Z2=36.9 -35.5° V. IL= VThZTh+ZL= 36.9 -35.5° V56.4-j56.4, , so |IL|=0.462 A.
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