# Atoms and Electrons – 40

40. One part of donor impurities to 108 parts of germanium :

(a) Increases the conductivity of the crystal twofold
(b) Increases the conductivity of the crystal fourfold
(c) Increases the conductivity of the crystal eightfold
(d) Increases the conductivity of the crystal tenfold

Explanation
Explanation : No answer description available for this question. Let us discuss.

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