Question Detail

PHY 102 Test Compilation PHY 102 14 Objective Question

Question

When silicon is doped with boron, it becomes a(n):
Options
A neutral conductor
B N-type semiconductor
C P-type semiconductor
Correct Answer
D neutral atom
Correct Answer

Option C is the correct answer.

Detailed Explanation

Silicon is a group 14 element (tetravalent). Boron is a group 13 element (trivalent). When silicon is doped with a trivalent impurity like boron, it creates 'holes' (electron deficiencies) in the crystal lattice, leading to a P-type semiconductor.

Hint

Consider the valency of silicon (group 14) and boron (group 13).

Question Info