Abstract:
Alternator is a special dc device, which converts machanical power into direct current (dc) electric power by means
of rotation. It gives dc supply to various electrical parts while automobile is working such as headlights, wiper
motor, different indicator lights, fan etc. It also charges the battery of the automobile , which gives dc supply to all
electrical components when automobiles is not working and primarily to starter motor for cranking the engine of
automobile.