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When arsenic is added as an impurity to silicon, the resulting material is (a) n-type semiconductor (b) p-type semiconductor (c) n-type conductor (d) Insulator



When arsenic is added as an impurity to silicon, the resulting material is


(a)    n-type semiconductor


(b)    p-type semiconductor


(c)    n-type conductor


            (d)    Insulator

Grade:upto college level

1 Answers

Aditi Chauhan
askIITians Faculty 396 Points
8 years ago

(a)

Arsenic contains 5 electrons in its outermost shell. When Arsenic is mixed with silicon there is one electron extra in silicon crystal. Hence, such type of semi ''conductor is n­-type semi conductor.

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