Question:
A pure semiconductor behaves slightly as a conductor at
A pure semiconductor behaves slightly as a conductor at
Updated On: Jun 20, 2022
- room temperature
- low temperature
- high temperature
- Both and
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The Correct Option is A
Solution and Explanation
At room temperature, a few electrons in valence band acquire energy greater than the forbidden energy gap and move to conduction band. Hence, at room temperature a pure semiconductor behaves slightly as a conductor.
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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.