Example 1 · difficulty 2/5
A semiconductor sample has conductivity 4.0 × 10⁻³ S m⁻¹. Its resistivity is
- A. 2.5 × 10⁻⁴ Ω m
- B. 4.0 × 10⁻³ Ω m
- C. 25 Ω m
- D. 250 Ω m
2022 source guide · Physics
NEET 2022 Physics Semiconductor Electronics Questions
Use this page to connect the official 2022 paper with current Physics practice. NeetVellum does not claim a chapter appeared in that paper until the official question and final key have been mapped.
What to master
junction diodes, rectification, logic gates and elementary devices.
Original practice preview
These are current-syllabus NeetVellum questions, shown separately from historical-paper provenance.
Example 2 · difficulty 1/5
Pure germanium is doped with a small amount of phosphorus. The resulting semiconductor is
- A. n-type, with electrons as majority carriers
- B. p-type, with holes as majority carriers
- C. intrinsic, because phosphorus forms four bonds
- D. an insulator, because doping widens the band gap
Example 3 · difficulty 1/5
Silicon doped with boron becomes p-type because each boron atom
- A. supplies a weakly bound fifth electron
- B. creates an incomplete covalent bond that can accept an electron
- C. removes the valence band completely
- D. contributes a freely moving proton
The evidence-first practice loop
- 1. Verify provenanceOfficial paper and final key before accepting a PYQ label.
- 2. Attempt closed-bookExpose the concept or execution gap before rereading.
- 3. Repair and returnClassify the miss and re-practice after a delay.
Canonical chapter practice
Frequently asked questions
Are these official NEET 2022 Physics Semiconductor Electronics PYQs?
No. The previews are original NeetVellum practice questions. A historical item receives a PYQ label only after its official paper and authoritative final answer key are attached. Use the official archive for the source paper.
How should I use the NEET 2022 paper?
Solve the official paper under its original timing, verify against the final key, classify every miss, and then use the linked current-syllabus practice bank to repair the exposed concept.