An AC Generator (Alternator) converts mechanical energy into electrical energy using Faraday's Law of Electromagnetic Induction. A coil rotating in a uniform magnetic field experiences changing flux, inducing an alternating EMF.
Thumb = velocity (v), Index = B field, Middle = Induced Current direction.
Armature Coil (ABCD) rotates in magnetic field • Soft Iron Core amplifies flux • Slip Rings maintain contact • Carbon Brushes collect current • Pole Pieces (N, S) create uniform field.