Question
Download Solution PDFSemiconductors have ______ conduction band and ______ valence band.
This question was previously asked in
SSC JE EE Previous Paper 12 (Held on: 24 March 2021 Evening)
Answer (Detailed Solution Below)
Option 3 : an almost empty; an almost filled
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Download Solution PDFProperty of Semiconductors:
- Semiconductors are the materials that have a conductivity between conductors (generally metals) and non-conductors or insulators (such as ceramics).
- Semiconductors can be compounds such as gallium arsenide or pure elements, such as germanium or silicon.
- Semiconductors have an almost empty conduction band and an almost filled valence band.
- In a semiconductor, the mobility of electrons is higher than that of the holes.
- Its Resistivity lies between 10-5 to 106 Ωm
- Conductivity lies between 105 to 10-6 mho/m
- The temperature coefficient of resistance for semiconductors is Negative.
- The current Flow in the semiconductor is mainly due to both electrons and holes.
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