Q. The depletion layer in the $P$-$N$ junction region is caused by
A) Drift of holes
B) Diffusion of charge carriers
C) Migration of impurity ions
D) Drift of electrons
Explanation
(b) Due to the large concentration of electrons in $N$-side and holes in $P$-side, they diffuses from their own side to other side. Hence depletion region produces
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.