Physics-(general)
NEET Physics (general) MCQ Question
Type: MCQ-diagram based-Hard-Class 12
Consider a diagram showing a semiconductor with pentavalent doping. What is the primary role of the extra electron provided by the pentavalent dopant in the semiconductor crystal lattice?
A
It enhances electrical conductivity by acting as a free electron.
B
It creates additional holes, increasing hole mobility.
C
It fills vacancies in the lattice to strengthen the structure.
D
It transitions to the valence band to facilitate conduction.
Correct Answer
Option A
Detailed Explanation
Pentavalent doping introduces extra electrons which enhance electrical conductivity as these electrons can move freely in the conduction band.
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