Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
Concepts Of Physics MCQ Edition [Volume 2]
Exam
Concepts Of Physics MCQ Edition [Volume 2]
Subject
Physics
Chapter
Semiconductors and Semiconductor Devices

Concepts Of Physics MCQ Edition [Volume 2] · Physics · Semiconductors and Semiconductor Devices

Within a p - n junction,

Within a pp-nn junction,

Options

  1. Aholes and conduction electrons continuously recombine throughout the material
  2. Bholes and conduction electrons continuously recombine throughout the material except in the depletion region
  3. Cnew holes and conduction electrons are generated continuously throughout the material except in the depletion region
  4. Dnew holes and conduction electrons are generated continuously throughout the material

Correct answer

D. new holes and conduction electrons are generated continuously throughout the material

Step-by-step solution

In a pp-nn junction, thermal energy continuously generates electron-hole pairs throughout the entire material, including the depletion region.

Simultaneously, the conduction electrons and holes continuously recombine throughout the entire material to maintain thermal equilibrium.

Thus, both generation and recombination of charge carriers occur continuously everywhere in the pp-nn junction.
Practice Semiconductors and Semiconductor Devices on Quantrex Academy →

More from Semiconductors and Semiconductor Devices

A pure semiconductor has 6 × 10^ 19 conduction electrons per cubic metre. Determine the… Concepts Of Physics MCQ Edition [Volume 2]For silicon, the band gap is 1.1 eV . Determine the ratio of the band gap to kT for… Concepts Of Physics MCQ Edition [Volume 2]For silicon, the band gap is 1.1 eV . At what temperature does the ratio of the band gap… Concepts Of Physics MCQ Edition [Volume 2]Determine the number of states per cubic metre in the 3s band of sodium, given that its… Concepts Of Physics MCQ Edition [Volume 2]When a semiconducting material is doped with an impurity, new acceptor levels are… Concepts Of Physics MCQ Edition [Volume 2]The band gap between the valence and conduction bands for indium antimonide is 0.23 eV .… Concepts Of Physics MCQ Edition [Volume 2]In zinc oxide (ZnO), the band gap between the valence and conduction bands is 3.2 eV .… Concepts Of Physics MCQ Edition [Volume 2]Determine the maximum wavelength of electromagnetic radiation capable of creating a… Concepts Of Physics MCQ Edition [Volume 2] Full Semiconductors and Semiconductor Devices list All Concepts Of Physics MCQ Edition [Volume 2] PYQs