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Question: The valence of an impurity added to germanium crystal in order to convert it into a P-type semi cond...

The valence of an impurity added to germanium crystal in order to convert it into a P-type semi conductor is.

A

6

B

5

C

4

D

3

Answer

3

Explanation

Solution

Ge+ Trivalent  impurity ⇒P - type  semiconduc tor \mathrm { Ge } + \begin{array} { l } \text { Trivalent } \\ \text { impurity } \end{array} \Rightarrow \begin{array} { l } P \text { - type } \\ \text { semiconduc tor } \end{array}