Q. When $N$-type of semiconductor is heated
A) Number of electrons increases while that of holes decreases
B) Number of holes increases while that of electrons decreases
C) Number of electrons and holes remains same
D) Number of electrons and holes increases equally
Explanation
(d) When a free electron is produced, simultaneously a hole is also produced
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.