MHT CET · Physics · Semiconductors
Identify the WRONG statement from the following.
In an intrinsic semiconductor
- A The number of free electrons is less than that in a conductor.
- B The number of free electrons increases with temperature.
- C There are no free electrons at any temperature except absolute zero.
- D There are no free electrons at absolute zero temperature.
Answer & Solution
Correct Answer
(C) There are no free electrons at any temperature except absolute zero.
Step-by-step Solution
Detailed explanation
Concept based.
At zero Kelvin semiconductor becomes perfect insulator. Therefore, no free electrons at zero Kelvin.
At zero Kelvin semiconductor becomes perfect insulator. Therefore, no free electrons at zero Kelvin.
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