$A$ Zener diode, having a breakdown voltage of $15 \text{ V}$, is used in a voltage regulator circuit as shown. The current through the Zener diode is (in $\text{ mA}$)

For the given circuit,the power across the zener diode is ..... $mW$.

In the given circuit,the value of $I_{L}$ (in $mA$) will be: (in $.5$)

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 $16 \, V$?

Consider the following statements $A$ and $B$ and identify the correct choice of the given answers.
Statement $A$: The potential barrier of a $PN$ junction lies between $0.1 \, V$ to $0.3 \, V$ approximately.
Statement $B$: $A$ Zener diode is always connected in reverse bias.

In the given circuit diagram,a $5 \,V$ Zener diode along with a series resistance $R$ is connected across a $50 \,V$ power supply. If the maximum Zener current is $90 \,mA$,the minimum value of the resistance $R$ required will be $..... \,\Omega$.