Question
Physics Question on Semiconductor electronics: materials, devices and simple circuits
In forward bias, the width of potential barrier in a p-n junction diode
A
remains constant
B
decreases
C
increases
D
first (a) then (b)
Answer
decreases
Explanation
Solution
In forward biasing, the conduction across p-n junction takes place due to migrations of majority carriers (i.e. electrons from n-side to p-side and holes from p-side to n-side), hence the size of depletion region decreases.