question_answer

An n-type semiconductor is

A)  negatively charged        

B)  positively charged

C)  neutral               

D)         None of the above

Correct Answer: C

Solution :

\[n-\]type semiconductor has free moving electrons (negative) and an equal number of stationary positively charged donor ions. The ions are positively charged because they have lost one electron each. The crystal as a whole is neutral.