In a series $LCR$ circuit,operated with an $ac$ of angular frequency $\omega$,the total impedance is
- A${[{R^2} + {(L\omega - C\omega )^2}]^{1/2}}$
- B${\left[ {{R^2} + {{\left( {L\omega - \frac{1}{{C\omega }}} \right)}^2}} \right]^{1/2}}$
- C${\left[ {{R^2} + {{\left( {L\omega - \frac{1}{{C\omega }}} \right)}^2}} \right]^{ - 1/2}}$
- D${\left[ {{{(R\omega )}^2} + {{\left( {L\omega - \frac{1}{{C\omega }}} \right)}^2}} \right]^{1/2}}$
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