Selenium is a semiconductor used in photocopying machines. What type of semiconductor would be
formed if a small amount of indium(In) impurity were added to pure selenium(Se)?
(A) substitutional type (B) p-type
(C) n-type (D) None of these

Question

Selenium is a semiconductor used in photocopying machines. What type of semiconductor would be
formed if a small amount of indium(In) impurity were added to pure selenium(Se)?

(A) substitutional type (B) p-type
(C) n-type (D) None of these

Ashutosh Sharma · Answer

n-type as it is forming a pentavalent impurity as indium belong to 13 th group and selenium belongs to 16 th group in periodic table.

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Selenium is a semiconductor used in photocopying machines. What type of semiconductor would be formed if a small amount of indium(In) impurity were added to pure selenium(Se)? (A) substitutional type (B) p-type (C) n-type (D) None of these

Selenium is a semiconductor used in photocopying machines. What type of semiconductor would be
formed if a small amount of indium(In) impurity were added to pure selenium(Se)?
(A) substitutional type (B) p-type
(C) n-type (D) None of these

1 Answers

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Selenium is a semiconductor used in photocopying machines. What type of semiconductor would be formed if a small amount of indium(In) impurity were added to pure selenium(Se)? (A) substitutional type (B) p-type (C) n-type (D) None of these

Selenium is a semiconductor used in photocopying machines. What type of semiconductor would beformed if a small amount of indium(In) impurity were added to pure selenium(Se)?(A) substitutional type (B) p-type(C) n-type (D) None of these

1 Answers

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Selenium is a semiconductor used in photocopying machines. What type of semiconductor would be
formed if a small amount of indium(In) impurity were added to pure selenium(Se)?
(A) substitutional type (B) p-type
(C) n-type (D) None of these