Given below are two statements:
Statement I: Photovoltaic devices can convert optical radiation into electricity.
Statement II: Zener diode is designed to operate under reverse bias in breakdown region.
In the light of the above statements, choose the most appropriate answer from the options given below:
Statement I: Photovoltaic devices can convert optical radiation into electricity.
Statement II: Zener diode is designed to operate under reverse bias in breakdown region.
In the light of the above statements, choose the most appropriate answer from the options given below:
Statement I is incorrect but Statement II is correct.
Statement I and Statement II are incorrect.
Both Statement I and Statement II are correct.
Statement I is correct but Statement II is incorrect
The Correct Option is C
Solution and Explanation
In the given problem, we have two statements to evaluate:
- Statement I: Photovoltaic devices can convert optical radiation into electricity.
- Statement II: Zener diode is designed to operate under reverse bias in breakdown region.
We need to determine the correctness of these statements:
Analysis:
Statement I: This statement is correct. Photovoltaic devices, commonly known as solar cells, are designed to convert light energy, specifically optical radiation, directly into electrical energy. This process is based on the photovoltaic effect, where light photons are absorbed by the semiconductor material, exciting electrons and generating an electric current.
Statement II: This statement is also correct. A Zener diode is a special type of semiconductor diode which is designed to allow current to flow in the reverse direction when a specific breakdown voltage is reached. This voltage is known as the Zener voltage. Unlike regular diodes, Zener diodes operate efficiently in the breakdown region, which allows them to be used in voltage regulation applications.
Conclusion:
The most appropriate answer is: Both Statement I and Statement II are correct.
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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.