The electric current in the circuit is given as $i = i_{0}(t / T)$. The r.m.s current for the period $t = 0$ to $t = T$ is . . . . . .

  • A
    $i_{0} / \sqrt{2}$
  • B
    $i_{0}$
  • C
    $i_{0} / \sqrt{6}$
  • D
    $i_{0} / \sqrt{3}$

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