Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-numerical-Medium-Class 12
What happens to the resistivity of an intrinsic semiconductor as temperature increases from 0 K?
A
It decreases due to increased thermal excitation.
B
It increases because of more electron-hole pairs.
C
It remains constant as energy bands do not change.
D
It increases due to reduced electron mobility.
Correct Answer
Option A
Detailed Explanation
As temperature increases from 0 K, thermal energy excites electrons from the valence band to the conduction band, decreasing resistivity.
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