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Semiconductor Theory MCQ Questions & Answers | Electrical Engineering

Learn Semiconductor Theory MCQ questions & answers are available for a Electrical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Semiconductor Theory MCQ question is the important chapter for a Electrical Engineering and GATE students. Page-4 section-1

31
The most commonly used semiconductor is ___________
Discuss
Answer & Solution
Answer: Option B
No explanation is given for this question. Let's Discuss on Board
32
An n-type semiconductor is
Discuss
Answer & Solution
Answer: Option B
Solution:
An n-type semiconductor is a type of semiconductor material in which the majority charge carriers are electrons. These electrons are negatively charged. The term "n-type" stands for "negative type," indicating the predominant charge of the carriers.

In an n-type semiconductor, impurities are intentionally added to introduce extra electrons into the crystal lattice, creating an excess of negative charge carriers. This leads to the conductivity of the material being primarily due to the movement of electrons.

Option A: Positively charged is not the correct answer as n-type semiconductors have an excess of negatively charged electrons, not positively charged carriers.

Option C: Electrically neutral is not the correct answer as n-type semiconductors have an excess of electrons and are not electrically neutral.

Option D: None of the above is not the correct answer as the correct answer is Option B: Negatively charged.

Given the options provided, the correct answer is Option B: Negatively charged.