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

When a Zener diode is used as a regulator with a Zener voltage of $10 \, V$, nearly five times the load current passes through the Zener diode. What should be the series resistance for the Zener diode if the load resistance is $2 \, k\Omega$ and the unregulated voltage supplied is $16 \, V$?

$A$ Zener diode of breakdown voltage $20 \ V$ is connected as shown in the given circuit. The current through the Zener diode is (in $mA$)

In the following circuit,the power dissipated in the Zener diode is (in $W$)

For the circuit shown below,calculate the value of ${I}_{{z}}$ : (In ${mA}$)

$A$ certain $p-n$ junction,having a depletion region of width $20 \,\mu m$,was found to have a breakdown voltage of $100 \,V$. If the width of the depletion region is reduced to $1 \,\mu m$ during its production,then it can be used as a zener diode for voltage regulation of .......... $V$.