question_answer 69)

  Which of the following is true about the charge acquired by p ? type semiconductors? (a) Positive                         (b) Neutral (c) Negative                       (d) Depends on concentration of p impurity

Answer:

                  (b) When group 13 elements are doped in group 14 element, it creates a hole in a molecule but the molecule as a whole remain neutral. Thus, p-type semiconductor is neutral in nature.