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

The output across the diode in the given circuit is:

Explain the use of a junction diode as a full-wave rectifier by drawing a circuit diagram and show the input and output waveforms.

For the circuit shown in the adjoining figure,to act as a full-wave rectifier,the $AC$ input should be connected across $....$ and $....$ and the $DC$ output would appear across $....$ and $....$.

Which of the following circuits provides full wave rectification of an $ac$ input?

Which of the following figures represents a half-wave rectifier?