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A series LCR circuit is connected to a v...

A series LCR circuit is connected to a variable frequency 230 V source , L=5.0 H, `C=80muF,R=40Omega`
Obtain impedance of the circuit and aplitude of current at resonance.

Text Solution

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At resonance impedance, `Z=R=40Omega`
`thereforeI_(rms)=V_(rms)/R=(sqrt2times230)/40=8.1 A`
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