Statement 1: Si doped with electron rich impurity is called n-type semiconductor.Statement 2: Conductivity of Si increases due to the negatively charged electron.

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Statement 1: Si doped with electron rich impurity is called n-type semiconductor.
Statement 2: Conductivity of Si increases due to the negatively charged electron.

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Both statements 1 and 2 are correct

Both statements 1 and 2 are incorrect

Statement 1 is incorrect and statement 2 is correct

Statement 1 is correct and statement 2 is incorrect

answer is A.

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Detailed Solution

An n-type semiconductor is an intrinsic semiconductor doped with phosphorus (P), arsenic (As), or antimony (Sb) as an impurity. Silicon of Group IV has four valence electrons and phosphorus of Group V has five valence electrons. This free electron is the carrier of an n-type semiconductor.

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