Seedha
Physics Part I
Class 12PDF
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Physics · Class 12Semiconductor ElectronicsVideo coming soonRead the notes instead
Free notes for this chapterMark as Completed
Energy Bands in Solids, p-n Junction and its Characteristics, Diode as a Rectifier and the board questions built on them — roughly 7 marks of the paper.
What this chapter covers
- 1Energy Bands in Solids
- 2p-n Junction and its Characteristics
- 3Diode as a Rectifier
- 4Zener Diode and LED
- 5Logic Gates
These lessons are being recorded. The written notes for this chapter are free to download now.
Learning resources
Seedha Notes
Chapter notes withimportant points,examples & format
View Notes for Semiconductor Electronics, PhysicsPractice Questions
Important questions,board questions,numericals
Practice Now for Semiconductor Electronics, PhysicsPrevious yearquestions withfull solutions
View PYQs for Semiconductor Electronics, PhysicsSample Paper
Board patternsample paper withmarking scheme
Open Paper for Semiconductor Electronics, Physics
In the notes
Topics covered
- 01Energy Bands in Solids12:54
- 02p-n Junction and its Characteristics29:46
- 03Diode as a Rectifier21:26
- 04Zener Diode and LED25:22
- 05Logic Gates18:11
After this chapter you can
- Explain energy bands in solids without reading from the book
- Present p-n junction and its characteristics in the format the marking scheme rewards
- Attempt every previous year question set on this chapter
- Marks
- 7
- PYQs
- 22
- Video
- 1h 48m
Then do the work
- One-shot revision, 27 minutes
- Formula sheet for this chapter
- Printable summary, 2 pages
Prepare
| Year | Asked as | Marks |
|---|---|---|
| 2025 | Short answer | 6 |
| 2024 | Case based | 2 |
| 2023 | MCQ set | 6 |
| 2022 | Long answer | 2 |
| 2021 | Short answer | 2 |
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Move through Physics
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Target 95+ in Physics
Padho, Likho, Revise and Marks Laao. Chapter 14 of 14 — keep going while the format is fresh.