List of top Physics Questions on Zener Diodes

A diode has Zener voltage of 10 V and maximum power dissipation of 0.5 W, then the minimum resistance to be used in series with this diode for safety when it is connected to a 25 V power supply is _______ \(\Omega\).

Manufacturers supply a zener diode with zener voltage \( V_z=5.6\,\text{V} \) and maximum power dissipation \( P_{\max}=\frac14\,\text{W} \). This zener diode is used in the circuit shown. Calculate the minimum value of the resistance \( R_s \) so that the zener diode will not burn when the input voltage is \( V_{in}=10\,\text{V} \). 

The output voltage in the following circuit is (Consider ideal diode case): 

Which of the following circuits represents a forward biased diode?
Which of the following circuits represents a forward biased diode?

A zener diode with 5V zener voltage is used to regulate an unregulated dc voltage input of 25V. For a 400 \( \Omega \) resistor connected in series, the zener current is found to be 4 times load current. The load current \( I_L \) and load resistance \( R_L \) are:

In the following circuit, the reading of the ammeter will be: (Take Zener breakdown voltage = 4 V)

The I-V characteristics of an electronic device shown in the figure. The device is
I-V Graph
Zener diode is used as an
In the given circuit if the power rating of Zener diode is 10 mW, the value of series resistance Rs to regulate the input unregulated supply is :
Circuit