Vehicles Alternator and how it works...?

Alternators are one of the most important electric equipments of Vehicles which is a source of power of all the internal accessories of Vehicle.  Number of people asks questions such as why does engine takes load once they turn on headlights, is it weak battery or problems with some other parts. Different answers are posted on forums but they are misguiding for the vehicle’s owner but somehow he agrees on the answers which are given by multiple users.

I intend to explain little bit about vehicle alternators, how does it works and how does it differs from generators. Alternators have two physical components such as Rotor and Stator. Component that rotates inside alternator is called Rotor and component which is attached with the body of Alternator is called stator. Coils of wire responsible for producing magnetic field are called Field and coils of windings responsible for producing power is called armature. Within body of Alternator, field is on Rotor where as armature is on Stator. Rotor can be made up of permanent magnet or it can simply be turned into electromagnet through current passing through slip rings into rotor windings. According to Michael Faraday, once magnetic flux changes on conductor then it produces electric field which is a basic principal behind operation of Alternators, generators and Transformers etc. Numbers of people tend to confuse armature on Stator and Field on Rotor whereas in generators armature is on Rotor whereas field is on Stator....