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An L-C-R series A.C. circuit is tuned to...

An L-C-R series A.C. circuit is tuned to resonance. The impedance of the circuit is ……

A

R

B

`[R^2 + ( (1)/(wC ) - wL)^2]^(1//2)`

C

`[R^2 + (wL)^2 + ((1)/(wC))^2 ]^(1//2) `

D

`[R^2 + (wL - (1)/(wC))^2 ]^(1//2)`

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