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Intrinsic & Extrinsic - Semiconductor Electronics Video Lecture - Class 12
FAQs on Intrinsic & Extrinsic - Semiconductor Electronics Video Lecture - Class 12
| 1. What is the difference between intrinsic and extrinsic semiconductor? |  |
Ans. Intrinsic semiconductor is a pure semiconductor with no impurities, while extrinsic semiconductor is a semiconductor doped with impurities. The impurities in extrinsic semiconductor can either be added to increase the conductivity (n-type) or decrease the conductivity (p-type).
| 2. How do intrinsic and extrinsic semiconductors differ in their electrical properties? | |
Ans. Intrinsic semiconductors have equal number of electrons and holes, resulting in balanced electrical conductivity. On the other hand, extrinsic semiconductors have an excess of either electrons (n-type) or holes (p-type), which influences their electrical conductivity.
| 3. What are the applications of intrinsic and extrinsic semiconductors? | |
Ans. Intrinsic semiconductors are used in devices like diodes, transistors, and integrated circuits. Extrinsic semiconductors find applications in solar cells, LEDs, and various other electronic devices.
| 4. How are intrinsic and extrinsic semiconductors manufactured? | |
Ans. Intrinsic semiconductors are typically produced by growing pure single crystals of semiconductor materials. Extrinsic semiconductors are created by doping the intrinsic semiconductor with suitable impurities during the crystal growth process.
| 5. Can the conductivity of an extrinsic semiconductor be easily controlled? | |
Ans. Yes, the conductivity of an extrinsic semiconductor can be controlled by adjusting the concentration of dopants during the manufacturing process. This allows for precise tailoring of the electrical properties to suit specific device requirements.
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Nov 29, 2024 Last updated |
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