Chapter 3 • Class 12 Physics
Electromagnetic Induction and Alternating Current
Class 12 Physics: Electromagnetic Induction and Alternating Current — Faraday's laws, Lenz's law, inductance, AC circuits, LCR resonance, transformers and LC oscillations with solved numericals and MCQ tests.
Study by topic — one focused page each
1
Electromagnetic Induction
Magnetic flux. The magnetic flux through a surface measures how many magnetic field lines pass through it. For a uniform field crossing a flat area , …
Start this topic → 2Inductance & AC Circuits
Self-inductance. When the current in a coil changes, the flux it produces through itself changes, inducing a back-EMF that opposes the change. This pr…
Start this topic → 3Transformers & LC Oscillations
AC generator. An AC generator converts mechanical energy into electrical energy using electromagnetic induction. A coil of turns and area is rotated w…
Start this topic →Chapter-wide tests
Online Test
20 MCQ • 15 min
IMO / Olympiad Practice
Olympiad level • 15 min
📝 Full Chapter Test (Download & Print)
40 marks • 90 min • with answer key