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For an LCR series circuit with an aac so...

For an LCR series circuit with an aac source of angular frequency `omega`.

A

circuit will be capacitive if `omega gt 1/sqrt(LC)`

B

circuit will be inductive if `omega=1/sqrt(LC)`

C

power factor of circuit will be unity if capacitive reactance equals inductive reactance

D

current will be leading voltage if `omega gt 1/sqrt(LC)`

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