$A$ $PN$ junction diode is used as:

$A$ full-wave rectifier circuit with diodes $D_1$ and $D_2$ is shown in the figure. If the input supply voltage is $V_{in} = 220 \sin(100 \pi t) \ V$, then at $t = 15 \ ms$:

The output current versus time curve of a rectifier is shown in the figure. The average value of output current in this case is

$A$ rectifier is used to

Write the principle of a rectifier.

In half wave rectification,if the input frequency is $60\,Hz$,then the output frequency would be $\dots\dots\dots\,Hz$.