Q. In a forward biased p-n junction diode, the potential barrier in the depletion region is of the form
A) [image:14_image163.emf]
B) [image:14_image164.emf]
C) [image:14_image165.emf]
D) [image:14_image166.emf]
Explanation
(d) In a forward biased p-n junction, the applied potential is opposite to the junction barrier potential $V_{B}.$ The consequence of this is the effective barrier potential reduces. Hence, the graph (d) is correctly shown.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.