Questions
The potential differences across the resistance, capacitance and inductance are, and respectively in an L-C-R circuit. The power factor of this circuit is
detailed solution
Correct option is C
Here, VR=80 V,VC=40 V,VL=100 V Power factor, cosϕ=RZ=VRV=VRVR2+VL-VC2=80(80)2+(100-40)2=80100=0.8Talk to our academic expert!
Similar Questions
An LCR series circuit with a resistance of 100 ohm is connected to an ac source of 200 V (r.m.s.) and angular frequency 300 rad/s. When only the capacitor is removed, the current lags behind the voltage by 60o . When only the inductor is removed the current leads the voltage by 60o . The average power dissipated is
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