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

  • A

    $(15 / 2)\,A$

  • B

    $5 \sqrt{3}\,A$

  • C

    $5 \sqrt{5}\,A$

  • D

    $15\,A$

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