When p-n junction diode is forward biased

see full answer

Your Exam Success, Personally Taken Care Of

1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.

An Intiative by Sri Chaitanya

both the depletion region and barrier height are reduced

the depletion region is reduced and barrier height is increased

both the depletion region and barrier height are increased.

the depletion region is widened and barrier height is reduced.

answer is C.

(Unlock A.I Detailed Solution for FREE)

Best Courses for You

JEE

NEET

Foundation JEE

Foundation NEET

CBSE

Detailed Solution

A p-n junction is said to be forward biased when the p side of the junction is connected to the positive terminal and n side is connected to the negative terminal of the external source. This causes the holes as well as the electrons to migrate towards the junction from the p and n regions respectively. As they come closer and closer, the width of the depletion layer decreases. The distance between the diffused electrons and holes start to get reduced and this causes a decrease in the electric field in the depletion area. Thus we can conclude that there will be a decrease in the barrier potential.

Watch 3-min video & get full concept clarity