Home Chemistry Solid State General Which of the following is true about the cha…
Chemistry Solid State General Single Correct MCQ
Published on: August 13, 2026

Which of the following is true about the charge acquired by p – types semiconductors?

A
Positive
B
Neutral
C
Negative
D
Depends on concentrations of p impurity

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Verified by Experts
The correct answer is:
B

p – type semiconductor is obtained when si or Ge is doped with a group 13 element like B, Al or Ga which contains only three valence electrons. An electrons hole is created at a place where the fourth valence electrons is missing. This electron hole moves like a positive charge towards cathode and conducts electricity. Thus, all p – types semiconductors are neutral.

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