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For the series LCR circuit shown in the figure, what is the resonance frequency and the amplitude of the current at the resonating frequency For the series LCR circuit shown in the figure, what is the resonance frequency and the amplitude of the current at the resonating frequency
The resonance frequency of a series resonance circuit isL=8mH=8×10-3H and C=20uF=20×10-6FSo w=2500 rad/sAt resonance the capacitive and inductive voltages cancel out each other,ie,VL=-VC.so Vsupply=VR+VL+VC=VRso current through the resistanceIR=VR/R=Vsupply/R =220/44=5.5AHope this helps
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