MCQ
Regarding a semiconductor which one of the following is wrong
  • There are no free electrons at room temperature
  • B
    There are no free electrons at $0 K$
  • C
    The number of free electrons increases with rise of temperature
  • D
    The charge carriers are electrons and holes

Answer

Correct option: A.
There are no free electrons at room temperature
At room temperature, few bonds breaks and electron hole pair generates inside the semiconductor.

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