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

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

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