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Table 2
3.3. Draw the graph semiconductor resistance logarithm against inverse temperature 3.4. Determine
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1. What is metal conductivity? 2. What does metal conductivity depend on? 3. Write down the law for temperature dependence of metal resistance. 4. Write down the law for temperature dependence of semiconductor resistance. 5. Give theoretical explanation for temperature dependence of metal resistance. 6. Give theoretical explanation for temperature dependence of semiconductor resistance. 7. Why does metal resistance grow while temperature increases? 8. Why does semiconductor resistance diminish while temperature increases? 9. How is temperature coefficient of metal resistance determined? 10. What substances are named semiconductors? 11. What substances are called intrinsic (pure) semiconductors? 12. What substances are called extrinsic (impurity) semiconductors? 13. How is forbidden bands width of a semiconductor determined? LABORATORY WORK Date: 2015-01-12; view: 1081 |