Physics

This is a complete, free study companion for Physics — built around what the exam actually asks. The topics examiners repeat most are Parallel plate capacitor capacitance with dielectric, Potentiometer principle and comparison of emf, and Biot-Savart law and circular current loop. The syllabus runs to 14 chapters. Below you'll find the full topic-frequency ranking, the exam paper pattern, every chapter, a step-by-step study plan, and the official downloads — everything in one place.

Everything here is free. We're an independent student resource, not the official Karnataka Board body, so always confirm the current syllabus and exam dates on the official Karnataka Board website before you rely on them.

Key information

Level: Class 12
Stream: Science
Exam: 2nd Pre-university Course
Conducted by: Karnataka School Examination and Assessment Board (KSEAB)

Most frequently examined topics

#	Topic	Times asked
1	Parallel plate capacitor capacitance with dielectric	5
2	Potentiometer principle and comparison of emf	5
3	Biot-Savart law and circular current loop	5
4	Moving coil galvanometer conversion	5
5	Faraday and Lenz laws of induction	5
6	AC generator	5
7	Series LCR circuit impedance	5
8	Transformer principle and losses	5
9	Electromagnetic spectrum and applications	5
10	Total internal reflection and applications	5
11	Lens maker's formula	5
12	Optical instruments magnifying power	5

Counted across the official previous-year question papers we have analysed for this subject. It shows what has been asked before — it does not predict what will appear in your exam. Always confirm the current syllabus on the official portal.

What you will study (chapters)

Chapter 1: Electric Charges and Fields
Chapter 2: Electrostatic Potential and Capacitance
Chapter 3: Current Electricity
Chapter 4: Moving Charges and Magnetism
Chapter 5: Magnetism and Matter
Chapter 6: Electromagnetic Induction
Chapter 7: Alternating Current
Chapter 8: Electromagnetic Waves
Chapter 9: Ray Optics and Optical Instruments
Chapter 10: Wave Optics
Chapter 11: Dual Nature of Radiation and Matter
Chapter 12: Atoms and Nuclei
Chapter 13: Electronic Devices
Chapter 14: Communication Systems

How to study Physics and score well

Start with the highest-frequency topics — In Physics, Parallel plate capacitor capacitance with dielectric, Potentiometer principle and comparison of emf, Biot-Savart law and circular current loop, and Moving coil galvanometer conversion appear again and again in past papers. Master these first — they return the most marks for the time you put in.
Practise with previous-year papers — Solve the last 5–10 years of Karnataka Board Physics papers under timed, exam-like conditions. Past papers show exactly which topics repeat and how questions are worded.
Revise actively, not passively — Write a one-page summary for each of the 14 chapters — key definitions, formulas and the points examiners reward — then re-test yourself instead of re-reading.
Mark your answers with the official scheme — After each practice paper, score yourself against the official marking scheme. It shows how marks are awarded step-by-step, so you learn to present answers the way examiners expect.

Exam tips: how to score higher in Physics

Where students lose marks: rushing the high-weightage questions, skipping the steps the marking scheme rewards, and saving easy sections for last. Read the whole paper first, attempt your strongest section early to bank marks, and always show your working.

Manage your time: split your time in proportion to the marks each section carries, keep a few minutes at the end to check, and never leave a question blank — a partial, structured answer still earns partial marks.

Frequently asked questions

What are the most important topics in Physics?

Based on past papers, the most frequently asked topics include Parallel plate capacitor capacitance with dielectric, Potentiometer principle and comparison of emf, Biot-Savart law and circular current loop. The full ranked list with how often each appears is in the "Most important topics" section above.

Where can I download Physics previous-year question papers?

Official Karnataka Board previous-year question papers are available on the official Karnataka Board website. Open the Question Papers section for the direct link, plus the exam pattern and the topics that repeat most.

How can I prepare for Physics faster?

Start with the highest-frequency topics, learn the exam pattern so you know how each section is marked, and practise with past papers. A subject-aware study tutor can quiz you on exactly these topics.

A Gyani AI tutor trained on the Physics syllabus and past papers can quiz you on the most-asked topics and show you exactly what to revise.