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JEE PHYSICS MCQ: SEMI CONDUCTOR DEVICES
1
Medium
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Understanding
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Statement I: By doping silicon semiconductor with pentavalent material the electrons density increases.
Statement II: The -type semiconductor has net negative charge.
In the light of the above statements choose the most appropriate answer from the options given below.
Statement II: The -type semiconductor has net negative charge.
In the light of the above statements choose the most appropriate answer from the options given below.
View answer and explanation
Correct option: A
Statement I is true but statement II is false.
Option A (Statement I is true but statement II is false) is correct because doping silicon with pentavalent material increases electron density, but the n-type semiconductor remains electrically neutral.
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