Contents
Electromagnetic Induction and Inductors
E.m.f. induced in a coil and the Lenz's Law
Self-inductance
Mutual inductance
Energy stored in an inductor
Different types of inductors
Transformers
Turn ratio, voltage ratio and current ratio
Autotransformers
Electromagnetic Devices
Relays
Loudspeakers
Microphones
Advanced Topics : Electromagnetism
(OPTIONAL)
Magnetic field and magnetic field lines
Force on a current carrying conductor
Magnetic flux
Faraday's law of electromagnetic induction
Magnetomotive force and magnetic field strength
Permeability
Front Page
Summary
Quiz