Question

Zener diode is used for

• A. amplification
• B. rectification
• C. stabilization
• D. all of the above amplification

Answer 1

The correct option is C

stabilization

Zener diode

1. It is a semiconductor device that makes the current flow forward or backward. It can also be used to establish voltage i.e to provide a constant voltage.
2. When the diode works in forward bias mode, the voltage exceeds a specific limit, termed Zener diode breakdown.
   
3. $R_S$ is the limiting resistor which is connected in series with input voltage $V_S$
4. This connection has a Zener diode in parallel connection with the load $R_L$
5. Now, the current which is flowing in the forward direction can be reversed using the constant voltage which is regulated/stabilized using the Zener diode.
6. This circuit is maintained in a way that the Zener diode maintains a constant DC output voltage across the load inspite of variations in input voltage or load current

Since the Zener diode stabilizes the voltage, it is used for stabilization. hence, the Correct option is C.