Gate EC-2016 – 1 Question Paper With Solutions

Q.21 A small percentage of impurity is added to intrinsic semiconductor at 300 K. Which one of the following statements is true for the energy band diagram shown in the following figure?

Gate EC-2016 - 1 Question Paper With Solutions

(A) Intrinsic semiconductor doped with pentavalent atoms to form n-type semiconductor

(B) Intrinsic semiconductor doped with trivalent atoms to form n-type semiconductor

(C) Intrinsic semiconductor doped with pentavalent atoms to form p-type semiconductor

(D) Intrinsic semiconductor doped with trivalent atoms to form p-type semiconductor

Answer: (A)

Explanation:

Gate EC-2016 - 1 Question Paper With Solutions

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