Skip to main content
Super TutorResources
Chapter 11 of 14
QuestionsNotesFlashcardsSummaryFormulasQuizConceptsSyllabusPlan
Revision Notes

Electromagnetic Induction

CBSE · Class 12 · Physics

Quick revision notes for Electromagnetic Induction — CBSE Class 12 Physics. Key concepts, formulas, and definitions for last-minute revision.

43 questions22 flashcards5 concepts

Interactive on Super Tutor

Studying Electromagnetic Induction? Get the full interactive chapter.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for revision notes and more.

Try Super Tutor — Free

1,000+ Class 12 students started this chapter today

A labeled diagram illustrating Faraday's first experiment, showing a bar magnet moving towards and away from a stationary coil connected to a galvanometer, demonstrating induced current and its direct
Super Tutor

This is just one of 18+ visuals inside Super Tutor's Electromagnetic Induction chapter

Explore the full set

Key Topics to Revise

1

Introduction and Historical Background

  • Electricity and magnetism were initially considered separate phenomena
  • Oersted, Ampere showed moving charges produce magnetic fields
  • Faraday (England) and Henry (USA) discovered electromagnetic induction around 1830
2

Faraday and Henry's Experiments

  • Experiment 1: Moving magnet near coil induces current - deflection only during motion
  • Experiment 2: Moving current-carrying coil near another coil induces current
  • Experiment 3: Changing current in one coil (using tapping key) induces current in nearby coil
3

Magnetic Flux

  • Magnetic flux is analogous to electric flux
  • Depends on magnetic field strength, area, and angle between field and area vector
  • For uniform field: ΦB = B·A = BA cos θ
4

Faraday's Law of Induction

  • EMF induced equals negative rate of change of magnetic flux
  • For N-turn coil: multiply by number of turns
  • Negative sign indicates direction (Lenz's law)

Get complete notes with diagrams and examples

Full Notes

Key Concepts

Magnetic flux (ΦB) through a surfaceThe magnitude of induced EMFThe polarity of induced EMFWhen a conductor of length lWhen current in one coil induces

Frequently Asked Questions

What are the important topics in Electromagnetic Induction for CBSE Class 12 Physics?
Electromagnetic Induction covers several key topics that are frequently asked in CBSE Class 12 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Electromagnetic Induction — CBSE Class 12 Physics?
Start by understanding all key concepts. Practise previous year questions from this chapter. Revise formulas and definitions regularly. Use flashcards for quick revision before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

More resources for Electromagnetic Induction

All 14 chapters — CBSE Class 12 Physics Revision Notes

For serious students

Get the full Electromagnetic Induction chapter — for free.

Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for CBSE Class 12 Physics.

Try Super Tutor Free
Try the full chapter — Free