.The Effect of Temperature on Conductivity of Superconductors
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1.The Effect of Temperature on Conductivity of Superconductors
2. How are conductance and electrical resistance characterized?
- What is the physical phenomenon that distinguishes conductors, semiconductors, insulators, and superconductors?
- In metals, how is conductivity affected by defects, temperature, and deformation?
5. In semiconductors, how is conductivity
affected by impurities (doping) and temperature?
6. Phosphorous is added to high purity silicon to produce a
1023 ?3 charges carrier concentration at room temperature. What is this type of material, n or p?
7. Calculate the conductivity of this material at room temperature, assuming that the mobilities of electrons and
of the gaps are the same as for the intrinsic material
?e = 0.14 and ?h = 0.048 ?/ V s.? = 2240(Ω − ?)-1. P why?
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