Choose the correct statement about Zener diode :
- It works as a voltage regulator in reverse bias and behaves like simple pn junction diode in forward bias.
- It works as a voltage regulator in both forward and reverse bias.
- It works as a voltage regulator only in forward bias.
- It works as a voltage regulator in forward bias and behaves like simple pn junction diode in reverse bias.
The Correct Option is A
Approach Solution - 1
A Zener diode is designed to operate in the reverse breakdown region. In this region, the voltage across the diode remains relatively constant even with variations in current. This characteristic allows it to be used as a voltage regulator in reverse bias. In forward bias, a Zener diode behaves like a regular pn junction diode.
Conclusion: The correct statement about a Zener diode is that it works as a voltage regulator in reverse bias and as a simple pn junction diode in forward bias (Option 1).
Approach Solution -2
The correct answer is option (A) : It works as a voltage regulator in reverse bias and behaves like simple pn junction diode in forward bias.
Works as voltage regulator in reverse bias and as simple P-n junction in forward bias.
Zener diode behaves as ordinary pn junction diode in the forward bias and behaves as voltage regulator when operated in the reverse bias at the breakdown voltage.
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Concepts Used:
Semiconductors
Semiconductors are a crystalline solid materials, whose electrical conductivity lies between a conductor and an insulator. Semiconductors are mainly used in the manufacturing of electronic devices like capacitors, transistors, diodes, Integrated circuits, etc.
Properties of Semiconductor:
- Semiconductor acts like an insulator at Zero Kelvin. On increasing the temperature, it works as a conductor.
- Due to their exceptional electrical properties, semiconductors can be modified by doping to make semiconductor devices suitable for energy conversion, switches, and amplifiers.
- Lesser power losses.
Uses of Semiconductor:
- Semiconductors are widely used in manufacturing electronics devices like transistors, diodes, sensors, integrated circuits.
- Semiconductors are widely used in all electronic devices, like mobile phones, digital cameras, communication devices, trains, ATMs, etc.