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PHY 102 Test Compilation PHY 102 19 Objective Question
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Question

When a small amount of phosphorus atoms is added to silicon, ...
Options
A a PN junction semiconductor is formed
B a P-type semiconductor is formed
C an N-type semiconductor is formed
Correct Answer
D an intrinsic semiconductor is formed
Correct Answer

Option C is the correct answer.

Detailed Explanation

Phosphorus is a pentavalent dopant, contributing extra free electrons to silicon and thus forming an N-type semiconductor.

Hint

Phosphorus has 5 valence electrons — one more than silicon needs for bonding, creating extra free electrons.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 19
Type: Objective
Difficulty: Not specified
Question 1210 of 1819
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