For a series $LCR$ circuit,which of the following statements is wrong?

  • A
    Applied e.m.f. and potential difference across resistance are in the same phase.
  • B
    Applied e.m.f. and potential difference across the inductor coil have a phase difference of $\pi / 2$.
  • C
    Potential difference across the capacitor and inductor have a phase difference of $\pi / 2$.
  • D
    Potential difference across resistance and capacitor have a phase difference of $\pi / 2$.

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In the series $L-C-R$ circuit shown,the impedance is (in $Omega$)

In an $LCR$ circuit,the potential difference between the terminals of the inductor is $60\,V$,between the terminals of the capacitor is $30\,V$,and between the terminals of the resistor is $40\,V$. The supply voltage will be equal to ......$V$.

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