For a series $LCR$ circuit,$R = X_L = 2X_C$. The impedance of the circuit and the phase difference between $V$ and $i$ will be:

  • A
    $\frac{\sqrt{5}R}{2}, \tan^{-1}(2)$
  • B
    $\frac{\sqrt{5}R}{2}, \tan^{-1}\left(\frac{1}{2}\right)$
  • C
    $\sqrt{5}X_C, \tan^{-1}(2)$
  • D
    $\sqrt{5}R, \tan^{-1}\left(\frac{1}{2}\right)$

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