Rankers Physics

Properties of Semiconductors: Practice Problem & Solution

When arsenic is added as an impurity to silicon, the resulting material is (1996)
n-type conductor
n-type semiconductor
p-type semiconductor
None of these

Short Solution (Best for NEET):

To solve this problem, we apply the core principles of Properties of Semiconductors. Understanding the underlying formula is key to arriving at the correct answer below:

Arsenic is a pentavalent impurity. When added to silicon, it donates an extra electron for conduction, resulting in an n-type semiconductor.[cite: 1]

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