07-05-2017, 12:51 PM
1. How is Hall’s coecient related with carrier concentration?
2. On what factors does the sign of the Hall’s coecient depend?
3. What is the sign of Hall Coecient for an intrinsic semiconductor?
4. Is it possible to measure Hall’s coecient for metals?
5. Why is the Hall coecient of semiconductors many orders of magnitude sgreater than
that of metals?
6. How is Hall’s coecient related to the Hall’s Voltage (VH) and the thickness(t)? Why
should the sample be thin?
7. In what units is Hall’s coecient measured in?
8. De ne carrier concentration, electrical conductivity, and mobility of charge carriers.
How are they related?
9. What are some of the requirements for a sample to be used for the determination of Hall’s Coecient?
10. Explain the increase of the resistance of the sample with the increase in magnetic fi eld.
11. De fine hall coefficient.
12. How does mobility depend on electrical conductivity?
13. De fine Hall angle.
14. Which type of charge has greater mobility?
15. What is the eff ect of temperature on Hall coefficient of a lightly doped semiconductor?
16. Do the holes actually move?
17. Does the Hall coefficient depend on the dimensions of the sample?
