Q. An $n$-type semiconductor is
A) Negatively charged
B) Positively charged
C) Neutral
D) Negatively or positively charged depending upon the amount of impurity
Explanation
(c) $n$-type semiconductor is having excess of free electrons (unbound electrons) for conduction. The total number of electrons in an atom is equal to total number of protons in the nucleus. Therefore, $n$-type semiconductor is neutral.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.