WAEC Physics 2022 Objective — Question 31
Question 31 of 50 from the West African Examinations Council (WAEC) Physics 2022 Objective paper, with the correct answer and a full explanation.
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In doping an intrinsic semiconductor to produce a p-type semiconductor, A. the semiconductor is heated up. B. a donor element is added. C. an acceptor element is added. D. the semiconductor is...
- A. the semiconductor is heated up
- B. a donor element is added
- C. an acceptor element is addedCorrect
- D. the semiconductor is compressed
Explanation
A p-type semiconductor is produced by doping with an acceptor (trivalent) element, such as boron or gallium, which creates 'holes' (positive charge carriers).
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