Electromagnetic Induction — Class 12 CBSE Physics revision notes
A 3-page visual revision sheet for Electromagnetic Induction, written for Class 12 CBSE Physics. Formulas, diagrams and the traps that cost marks, laid out to be read the night before rather than the term before. Free, and it opens inside CapCompass.
What this Electromagnetic Induction sheet covers
- Flux
- Changing flux
- Induced emf
- Faraday's and Lenz's laws
- Motional emf
- a rod of length l sliding at speed v, field B perpendicular
- as a magnetic force on the free charges
- current if the loop has resistance R
- the force resisting the rod's motion
- Eddy currents
- Self-inductance
- flux linkage in terms of current
- self-induced emf
- long solenoid, n turns per length, length l
- unit, henry
- Growth and decay of current in an LR circuit
- Mutual inductance
- flux in coil 2 from current in coil 1
- induced emf in coil 2
- two long coaxial solenoids, same length l area A
- AC generator, the idea
- Symbols
- Traps that cost marks
- Tricks that save time
How CapCompass uses this sheet
These notes are not a standalone PDF. CapCompass plans Physics chapter by chapter against your real exam dates and free hours, and when the plan reaches Electromagnetic Induction the sheet opens inside the study block itself — at the page covering the sub-topic that block is on, with the timer still running. Revision arrives at the moment the plan says revise, instead of having to be gone looking for.