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Electronics and Communication Engineering - Electronic Devices and Circuits - Discussion

Discussion Forum : Electronic Devices and Circuits - Section 4 (Q.No. 29)
Electronic Devices and Circuits
29.
If a sample of germanium and a sample of Si have the impurity density and are kept at room temperature then
both will have equal value of resistivity
both will have equal -ve resistivity
resistivity of germanium will be higher than that of silicon
resistivity of Si will be higher than of germanium
Answer: Option
Explanation:

Since the majority of charge carrier is better in Ge than in Si, for the same concentration of charge carriers, the conductivity of Ge is higher than that of Si.

Discussion:
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