Draw the symbol of $NAND$ gate.

The symbol of a diode is shown in the figure:

The diode is a _____.

The symbol of a diode is shown in the figure:

Draw the $\mathrm{VI}$ characteristics of above diode.

The symbol of a diode is shown in the figure:

A zener diode with ${\mathrm{V}}_{\mathrm{Z}}=6.0 \mathrm{V}$ is used for voltage regulation. The current through the load is to be $4.0 \mathrm{mA}$ and that through the zener diode is $20 \mathrm{mA}$. If the unregulated input is $10.0 \mathrm{V}$, what is the value of series resistor $\mathrm{R}$?

The symbol of a diode is shown in the figure:

What is the fundamental frequency of the ripple in a full wave rectifier circuit operating from $50 \mathrm{Hz}$ mains?

Figure shows the symbolic representation of 

The circuit used to change alternating voltage to direct voltage is called rectifier.

$\left(\mathrm{a}\right)$ With a neat diagram, explain the working of a full wave rectifier having two diodes.

The circuit used to change alternating voltage to direct voltage is called rectifier.

$\left(\mathrm{b}\right)$ What is the output frequency of a full wave rectifier if the input frequency is $50 \mathrm{Hz}$?

The circuit used to change alternating voltage to direct voltage is called rectifier.

$\left(\mathrm{c}\right)$ Draw the output waveform across the load resistance connected in the full wave rectifier circuit.