A reverse biased zener diode when operated in the breakdown region works as:
Show Hint
- an amplifier
- an oscillator
- a voltage regulator
- a rectifier
The Correct Option is C
Approach Solution - 1
Step 1: {Understanding Zener Diode}
A zener diode allows current to flow in the reverse direction when the applied voltage exceeds the breakdown voltage.
Step 2: {Function of a Zener Diode}
In the breakdown region, the voltage across the diode remains nearly constant, making it ideal for voltage regulation. Thus, the correct answer is (C).
Approach Solution -2
Correct Answer:
Option 3 — a voltage regulator
Explanation:
A zener diode is designed to operate in the reverse breakdown region. When a reverse voltage applied across the zener diode reaches its breakdown voltage, it allows current to flow in the reverse direction while maintaining a nearly constant voltage across it. This property makes it ideal for use as a voltage regulator.
Key Point:
In the breakdown region, a zener diode maintains a steady output voltage despite changes in the input voltage or load conditions.
Thus, a reverse-biased zener diode in the breakdown region functions as a:
\[ \boxed{\text{Voltage Regulator}} \]
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