CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon
MyQuestionIcon
1
You visited us 1 times! Enjoying our articles? Unlock Full Access!
Question

The process that occur during formation of a pn junction is

A
diffusion
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
B
doping
No worries! We‘ve got your back. Try BYJU‘S free classes today!
C
drift
Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses
D
depletion
No worries! We‘ve got your back. Try BYJU‘S free classes today!
Open in App
Solution

The correct options are
A diffusion
C drift

During the formation of the p-n junction, the concentration of holes on p-side is more and concentration of electrons on n-side is more. As a result of this concentration gradient, electrons diffuse from n to p side and holed diffuse from p to n-side. This is called diffusion.
Drift: Because of potential barriers across the junction, an electric field will be set up across the junction which exerts a force on electrons in p-region to move towards n-side and force on holes in n-region to move towards p-side. As a result holes from n to p drift and electrons drift from p to n side. This constitutes drift current.

flag
Suggest Corrections
thumbs-up
0
Join BYJU'S Learning Program
similar_icon
Related Videos
thumbnail
lock
Factors Affecting Resistance & How They Affect_Tackle
PHYSICS
Watch in App
Join BYJU'S Learning Program
CrossIcon