Let 
and 
be the number of holes and conduction electrons respectively in a semiconductor, then
A
in an intrinsic semiconductor B
in an extrinsic semiconductor C
in an intrinsic semiconductor D
in an intrinsic semiconductor
Text Solution
Verified by ExpertsThe correct answer is:
C
In intrinsic semiconductors, the creation or liberation of one free electron by the thermal energy creates one hole simultaneously. Thus, in intrinsic semiconductors 
.
Hence, number of electron 
number of hole.
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