Match List I with List II:List I List II A Intrinsic Semiconductor I Fermi-level near the conduction band B n-type semiconductor II Fermi-level in the middle of valence and conduction band C p-type semiconductor III Fermi-level near the valence band D Metals IV Fermi-level inside the conduction band
Choose the correct answer from the options given below:
| List I | List II | ||
| A | Intrinsic Semiconductor | I | Fermi-level near the conduction band |
| B | n-type semiconductor | II | Fermi-level in the middle of valence and conduction band |
| C | p-type semiconductor | III | Fermi-level near the valence band |
| D | Metals | IV | Fermi-level inside the conduction band |
- A-I, B-II, C-III, D-IV
- A-III, B-I, C-II, D-IV
- A-II, B-I, C-III, D-IV
- A-II, B-III, C-I, D-IV
The Correct Option is D
Solution and Explanation
The correct option is: (d) A-II, B-III, C-I, D-IV
Intrinsic semiconductor: The Fermi-level is in the middle of the valence and conduction bands.
In n-type semiconductor: The Fermi-level is near the conduction band.
In p-type semiconductor: The Fermi-level is near the valence band.
In metals: The Fermi-level is inside the conduction band.
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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.