If the maximum efficiency of a full wave rectifier is $x \%$ and that of a half wave rectifier is $y \%$,then the relation between $x$ and $y$ 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 ...... $\%$.

For a half-wave rectifier,if the maximum output voltage is $10 \ V$,what will be the $D.C.$ output voltage?

What will be the output waveform for the rectifier shown in the figure?

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 full-wave rectifier,the input $AC$ current has a frequency '$v$'. The output frequency of the current is