Explain zener breakdown.

The value of the resistor, $R_S$, needed in the DC voltage regulator circuit shown here, equals:

Two Zener diodes ($A$ and $B$) having breakdown voltages of $6 \mathrm{V}$ and  $4 \mathrm{V}$ respectively, are connected as shown in the circuit below. The output voltage $V_0$ variation with input voltage linearly increasing with time, is given by ($V_{input} = 0 \mathrm{V} \text{at} t = 0$)

In the circuit shown, what will be the current through the $6 \mathrm{V}$ zener?

In case of a p-n junction diode at high value of reverse bias, the current rises sharply. The value of reverse bias is known as

Take the breakdown voltage of the zener diode used in the given circuit as $6 \mathrm{V}$. For the input voltage shown in the figure below, the time variation of the output voltage is: (Graphs drawn are schematic and not to the scale)

In which bias can a Zener diode be used as voltage regulator?

The zener diode has a $V_z=30 \mathrm{V}$. The current passing through the diode for the following circuit is___$\mathrm{mA}.$

What will be the current flowing through the $6 \mathrm{k\Omega }$ resistor in the circuit shown, where the breakdown voltage of the Zener is $6 \mathrm{V}?$

In connection with the circuit drawn below, the value of current flowing through $2 \mathrm{k\Omega }$ resistor is______$\times {10}^{-4} \mathrm{A}.$

For the circuit shown below, calculate the value of $I_{\mathrm{z}}:$

The value of power dissipated across the zener diode $\left(V_{\mathit{z}}=15 \mathrm{V}\right)$ connected in the circuit as shown in the figure is $x\times {10}^{-1} \mathrm{W}$.

The value of $x$ to the nearest integer is _______.

The $6 \mathrm{V}$ Zener diode shown in the figure has negligible resistance and a knee current of $5 \mathrm{mA}$. The minimum value of $\mathrm{R}\mathrm{ }\left(\mathrm{in}\mathrm{ }\mathrm{\Omega }\right)$ so that the voltage across it does not fall below $6 \mathrm{V}$ is