The electrical circuits used to get smooth $d.c.$ output from a rectifier circuit are called:

In the circuit shown in the figure, the maximum output voltage $V_0$ is.....$V$.

In the half wave rectifier circuit operating from $50\, Hz$ mains frequency,the fundamental frequency in the ripple would be......$ Hz$

$A$ 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 (in volt) across $R$ is approximately:

When a sinusoidal $AC$ voltage is applied to a half-wave rectifier,the peak output voltage is $10 \ V$. The value of the $DC$ voltage in this output is .......

In a half-wave rectifier using a $PN$ junction diode, the input voltage has an amplitude of $25 \ V$ and a frequency of $50 \ Hz$. No filter is used, and the load resistance is $1000 \ \Omega$. The forward resistance of the diode is $10 \ \Omega$. The efficiency of the rectifier is approximately ...... $\%$.