In a Zener diode,

$A$ reverse biased Zener diode when operated in the breakdown region works as

$A$ Zener diode of power rating $1.6\,W$ is to be used as a voltage regulator. If the Zener diode has a breakdown voltage of $8\,V$ and it has to regulate an input voltage fluctuating between $3\,V$ and $10\,V$, the value of series resistance $R_s$ for the safe operation of the diode will be $.........\Omega$.

$A$ diode has Zener voltage of $10 \text{ V}$ and maximum power dissipation of $0.5 \text{ W}$. The minimum resistance to be used in series with this diode for safety when it is connected to a $25 \text{ V}$ power supply is . . . . . . $\Omega$.

An ideal Zener diode with a breakdown voltage of $3 \text{ V}$ is reverse-biased with an input voltage $V_i = 5 \text{ V}$. The magnitude of the voltage difference between points $B$ and $A$ is: (in $\text{ V}$)

In a Zener diode,the reverse bias voltage is $3 \ V$ and the width of the depletion region is $300 \ \mathring{A}$. The electric field intensity will be $\dots \ V/cm$.