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प्रश्न
Answer the following in one or two sentences.
The following pictures show population of bands for materials having different electrical properties. Classify them as insulator, semiconductor or metal.
उत्तर
The picture in the left represents a metal, the picture in the middle represents an insulator and the picture in the right represents a semiconductor.
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संबंधित प्रश्न
Answer the following in one or two sentences.
How does the electrical conductivity of a semiconductor change with temperature? Why?
Answer the following in one or two sentences.
The picture represents bands of MOs for Si. Label valence band, conduction band, and band gap.
Answer the following in brief.
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What are n-type semiconductors? Why is the conductivity of doped n-type semiconductor higher than that of pure semiconductor? Explain with diagram.
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Which of the following is a metal?
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State the conditions for the formation of Schottky defect. The following picture shows bands for materials having different electrical properties.
Classify them as semiconductors, metals and insulators with reason.
Explain the classification of solids on the basis of electrical conductivity.
