To obtain a P-type semiconductor-
A. The impurity having five valence is added
B. Three valent impurities
C. Both types of compounds
D. None of these
Answer: Option B
A. The impurity having five valence is added
B. Three valent impurities
C. Both types of compounds
D. None of these
Answer: Option B
A. copper
B. silicon
C. silica
D. chromium
Which one of the following is not a semiconductor?
A. Silicon
B. Germanium
C. Quartz
D. Gallium arsenide
. . . . . . . . was later discovered and replaced with silicon.
A. Rubidium
B. Scandium
C. Germanium
D. Gallium
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