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An n-type and a p-type silicon semi-conductor can be obtained by doping pure silicon with A. sodium and magnesium respectively B. phosphorous and boron respectively C. indium and sodium respectively D. boron and arsenic respectively

An n-type and a p-type silicon semi-conductor can be obtained by doping pure silicon with A. sodium and magnesium respectively B. phosphorous and boron respectively C. indium and sodium respectively D. boron and arsenic respectively

Grade:upto college level

1 Answers

Raheema Javed
156 Points
9 years ago
The correct answer is (B) phosphorus and boron.
Phophorus has 5 valence electrons, so it will produce n-type semiconductor.
Boron has 3 valence electrons, so it will produce p-type semiconductor.258-659_dop.gif

In the figure, the first is n-type and the second is of p-type.

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