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Electronics and Communication Engineering (ECE) : Electronic Devices and Circuits - Quiz(MCQ)
What is the conductivity of an extrinsic type semiconductor electronic device at 0K?
A)
zero
B)
minimum
C)
maximum
D)
can’t be determined

Correct Answer : Option (A) :   zero


Explanation : At T = 0K, conductivity will be zero because donar level ionization is zero, so no free electron is there in the conduction band. Conductivity is measured when free electrons are present in the conduction band for conduction.

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