Voltage and current in an $ac$ circuit are given by $V = 5\sin(100\pi t - \frac{\pi}{6})$ and $I = 4\sin(100\pi t + \frac{\pi}{6})$. Which of the following statements is correct?

  • A
    Voltage leads the current by $30^o$
  • B
    Current leads the voltage by $30^o$
  • C
    Current leads the voltage by $60^o$
  • D
    Voltage leads the current by $60^o$

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