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A series LCR circuit containing a resist...

A series LCR circuit containing a resistance of `120 Omega` has angular resonance frequency `4 xx 10^(5) rad s^(-1)`. At resonance the vlotage across resistance and inductance are 60V and 40 V, repectively,
At what frequency, the current in the circuit lags the voltage bu `45^(@)` ?

Text Solution

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The correct Answer is:
`omega=8xx10^(5)rad S^(-1)`
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