Electronic Devices Question 28
Question: The valence of an impurity added to germanium crystal in order to convert it into a P-type semi conductor is
[MP PMT 1989; CPMT 1987]
Options:
A) 6
B) 5
C) 4
D) 3
Show Answer
Answer:
Correct Answer: D
Solution:
$ Ge $ + $ \begin{aligned} & \text{Trivalent} \ & \text{ impurity} \ \end{aligned}$
$ \begin{aligned} & P\text{-type} \ & \text{semiconductor} \ \end{aligned}$
