Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
The electrical conductivity of an intrinsic semiconductor at 0K is
A
less than that of an insulator
B
is equal to zero
C
is equal to infinity
D
more than that of an insulator
Answer
is equal to zero
Explanation
Solution
The conductivity of an intrinsic semiconductor decreases with decrease in temperature and so it behaves as an insulator at 0K. The conductivity of an insulator is zero. Therefore. the electrical conductivity of an intrinsic semiconductor at 0K is equal to zero.