Discussion Forum



1)

An n-type semiconductor is 


A) Neutral

B) Positively charged

C) Negatively charged

D) Negatively or positively charged depending on the amount of impurity added

Answer:

Option A

Explanation:

The n-type semiconductor has an excess of free electrons for conduction. The total number of electrons in an atom is equal to the total number of protons in the nucleus. So, n-type semiconductor is neutral