Question

A small impurity is added to germanium to get a p-type conductor. The impurity valency is ¡)1 ¡¡)3 ¡¡¡)2 ¡v)5​

Answer 1

Answer:

answer will. be 2 if impurity is added to germanium

Answer 2

Explanation:

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Pentavalent impurities Impurity atoms with 5 valence electrons produce n-type semiconductors by contributing extra electrons. Trivalent impurities Impurity atoms with 3 valence electrons produce p-type semiconductors by producing a "hole" or electron deficiency.

SO, OPTION 4 IS CORRECT

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