The Zener diode is used for

$A$ 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 circuit shown below,the maximum Zener diode current will be $..... \text{mA}$.

$A$ Zener diode,having a breakdown voltage equal to $15\,V$,is used in a voltage regulator circuit as shown in the figure. The current through the diode is......$mA$.

In the given circuit,the current through the Zener Diode is close to.......$mA$.

For the circuit shown below,the current through the Zener diode is......$mA$