Zener Diode Use
Easyphysics
Zener diode primarily used for?
Select the correct option:
Solution
Incorrect! Answer:
Voltage regulation
- Zener Diode: A heavily doped silicon PN junction diode designed to operate specifically in the reverse breakdown region.
- Characteristic: In the Zener breakdown region, the voltage across the diode remains almost constant (equal to Vz) even for large changes in the reverse current.
- Application: This unique property is utilized for voltage regulation.
- Circuit Role: When placed in parallel with a load, any input voltage fluctuation is 'absorbed' by the Zener's current changes, keeping the load voltage fixed at Vz.
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About This Question
- Subject
- physics
- Chapter
- semiconductor devices
- Topic
- zener diode use
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
Voltage regulation
- Zener Diode: A heavily doped silicon PN junction diode designed to operate specifically in the reverse breakdown region.
- Characteristic: In the Zener breakdown region, the voltage across the diode remains almost constant (equal to Vz) even for large changes in the reverse current.
- Application: This unique property is utilized for voltage regulation.
- Circuit Role: When placed in parallel with a load, any input voltage fluctuation is 'absorbed' by the Zener's current changes, keeping the load voltage fixed at Vz.
This easy difficulty physics question is from the chapter semiconductor devices, covering the topic of zener diode use. It appeared in the 2025 exam.
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