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Physics Part I
Class 12PDF
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Physics · Class 12Alternating CurrentVideo coming soonRead the notes instead
Free notes for this chapterMark as Completed
AC through R, L and C, Series LCR Circuit and Resonance, Power Factor and Wattless Current and the board questions built on them — roughly 7 marks of the paper.
What this chapter covers
- 1AC through R, L and C
- 2Series LCR Circuit and Resonance
- 3Power Factor and Wattless Current
- 4Transformer
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 Alternating Current, PhysicsPractice Questions
Important questions,board questions,numericals
Practice Now for Alternating Current, PhysicsPrevious yearquestions withfull solutions
View PYQs for Alternating Current, PhysicsSample Paper
Board patternsample paper withmarking scheme
Open Paper for Alternating Current, Physics
In the notes
Topics covered
- 01AC through R, L and C13:54
- 02Series LCR Circuit and Resonance17:22
- 03Power Factor and Wattless Current23:57
- 04Transformer25:56
After this chapter you can
- Explain ac through r, l and c without reading from the book
- Present series lcr circuit and resonance in the format the marking scheme rewards
- Attempt every previous year question set on this chapter
- Marks
- 7
- PYQs
- 14
- Video
- 1h 21m
Then do the work
- One-shot revision, 20 minutes
- Formula sheet for this chapter
- Printable summary, 2 pages
Prepare
| Year | Asked as | Marks |
|---|---|---|
| 2025 | MCQ set | 6 |
| 2024 | Case based | 4 |
| 2023 | Short answer | 4 |
| 2022 | Long answer | 2 |
| 2021 | MCQ set | 2 |
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Padho, Likho, Revise and Marks Laao. Chapter 7 of 14 — keep going while the format is fresh.