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Which of the following when added acts as an impurity into silicon produced n-type semi-conductor? (a) P (b) Al (c) B (d) Mg



Which of the following when added acts as an impurity into silicon produced n-type semi-conductor?


        (a)    P     


(b)    Al


        (c)    B


        (d)    Mg


Grade:10

1 Answers

Kevin Nash
askIITians Faculty 332 Points
7 years ago

(a)

n-type of silicon semiconductor is formed when impurity is mixed with pentavalent atom. Out of given choices only phosphorus is pentavalent.

 

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