When arsenic is added as an impurity to silicon, the resulting material is (a) n-type conductor (b) n-type semiconductor (c) p-type semiconductor (d) none of these

Answer: (b). Arsenic is pentavalent, so it donates a free electron in Si. Electrons become majority carriers, but the material is still a semiconductor. So the answer is (b) n-type semiconductor.

When arsenic is added as an impurity to silicon, the resulting… | NEET 1996 (AIPMT)

Q64NEET 1996 · AIPMTEasy

Intrinsic & Extrinsic Semiconductors

When arsenic is added as an impurity to silicon, the resulting material is

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Answer: (b)

Arsenic is pentavalent, so it donates a free electron in Si.
Electrons become majority carriers, but the material is still a semiconductor.
So the answer is (b) n-type semiconductor.

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Intrinsic & Extrinsic Semiconductors question from NEET 1996 (AIPMT)

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