In the circuit shown in the figure,if the value of $rms$ current is $2.2\, A$,the power factor of the box is:

  • A
    $\frac{1}{\sqrt{2}}$
  • B
    $1$
  • C
    $\frac{\sqrt{3}}{2}$
  • D
    $\frac{1}{2}$

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