Which of the following statements are true about semiconductors? (i

1.	Which of the following statements are true about semiconductors? (i) Silicon doped with electron rich impurity is a p-type semiconductor. (ii) Silicon doped with an electron rich impurity is an n-type semiconductor. (iii) Delocalised electrons increase the conductivity of doped silicon. (iv) An electron vacancy increases the conductivity of n-type semiconductor.
Answer» (ii) Silicon doped with an electron rich impurity is an n-type semiconductor. (iii) Delocalised electrons increase the conductivity of doped silicon.

Which of the following statements are true about semiconductors? (i) Silicon doped with electron rich impurity is a p-type semiconductor. (ii) Silicon doped with an electron rich impurity is an n-type semiconductor. (iii) Delocalised electrons increase the conductivity of doped silicon. (iv) An electron vacancy increases the conductivity of n-type semiconductor.

Answer»

(ii) Silicon doped with an electron rich impurity is an n-type semiconductor.

(iii) Delocalised electrons increase the conductivity of doped silicon.