Semiconductor Electronics Materials Devices and Simple Circuits - Result Question 41

«««< HEAD:content/english/neet-pyq-chapterwise/physics/semiconductor-electronics-materials-devices-and-simple-circuits/semiconductor-electronics-materials-devices-and-simple-circuits-result-question-41.md

42. A depletion layer consists of

======= ####42. A depletion layer consists of

3e0f7ab6f6a50373c3f2dbda6ca2533482a77bed:content/english/neet-pyq-chapterwise/physics/semiconductor-electronics-materials-devices-and-simple-circuits/semiconductor-electronics-materials-devices-and-simple-circuits—result-question-41.md (a) electrons

(b) protons

(c) mobile ions

(d) immobile ions

[1999]

Show Answer

Answer:

Correct Answer: 42. (d)

Solution:

  1. (d) Depletion layer is formed by diffusion of holes and electrons from $p$-type semiconductor to n-type semiconductor and vice-versa. Hence, donor and acceptor atom get positive and negative charge leading to formation of $p-n$ junction. The donor and acceptor are immobile.