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A series LCR circuit with L= 100 mH, C= 10-3 F and R=10 , is connected across an ac source of 220 V, 50 Hz supply. The power factor of the circuit would be .
1
XL= L=2 50 100 10-3=10
XC= 1 C= 12 50 10-3 =10
XL=XC, the circuit is at resonance Z=R
= RZ=1
Answer: 1
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