Question Detail

PHY 102 Test Compilation PHY 102 18 Objective Question

Question

When a pentavalent impurity is added to a pure semiconductor, it becomes
Options
A An insulator
B An intrinsic semiconductor
C P-type semiconductor
D N-type semiconductor
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

A pentavalent (Group V) dopant contributes an extra free electron, creating an N-type (electron-majority) semiconductor.

Hint

Pentavalent = 5 valence electrons = one extra electron donated → think 'N' for negative carrier.

Question Info