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Q#1
Sinusoidal Steady State Analysis
GATE EE 2002
MCQ
+2 marks
-0.66 marks
In the circuit shown in Figure, what value of C will cause a unity power factor at the ac source?
68.1 µF
165 µF
0.681 µF
6.81 µF
Explanation:
Admittance of capacitor
Admittance of 
combination
Total admittance of parallel combination
For unity power factor at source end
Imaginary part of admittance should be zero.
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