Carbon, silicon and germanium have four valence electrons each. At room temperature which…
Physics · NEET · NTA Exams — Electronic Devices
Carbon, silicon and germanium have four valence electrons each. At room temperature which one of the following statement is most appropriate?
- The number of free conduction electrons is significant in C but small is Si and Ge
- The number of free conduction electrons is negligibly small in all the three
- The number of free electrons for conduction is significant in all the three
- The number of free electrons for conduction is significant only in Si and Ge but small in C
Answer
(B) The number of free conduction electrons is negligibly small in all the three
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