$A$ direct current of $5\,A$ is superposed on an alternating current $I = 10 \sin \omega t$ flowing through a wire. The effective value of the resulting current will be

  • A
    $7.5\,A$
  • B
    $5\sqrt{3}\,A$
  • C
    $5\sqrt{5}\,A$
  • D
    $15\,A$

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