$A$ sinusoidal voltage of peak value $200\, V$ is connected to a diode and resistor $R$ in the circuit shown so that half-wave rectification occurs. If the forward resistance of the diode is negligible compared to $R$,the $rms$ voltage across $R$ is approximately.....$V$.

  • A
    $200$
  • B
    $100$
  • C
    $\frac{200}{\sqrt{2}}$
  • D
    $280$

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