Definition

1. Noun:
   • An electric generator that produces alternating current: An alternator is a device that converts mechanical energy into electrical energy in the form of alternating current (AC). It is commonly used in vehicles to charge the battery and power the electrical system while the engine is running.

Usage Examples

• Noun:
  • The car's alternator failed, so the battery was not charging.
  • A modern alternator is more efficient than the old direct-current generators.

Advanced Usage

• Technical Context: In automotive engineering, the term "alternator" specifically refers to the AC generator that is rectified to DC to charge a vehicle's 12-volt battery.
  • The technician tested the output voltage of the alternator.

Variants and Related Words

• Alternate (verb): To occur or cause to occur by turns.
  • The lights alternate between red and green.
• Alternating current (AC) (noun): An electric current that reverses direction periodically.
  • Household appliances typically run on alternating current.

Synonyms

• AC generator: A generator of alternating current.
• Generator: A general term for a device that converts mechanical energy to electrical energy.

Related Phrases

• Alternator belt: The drive belt that turns the alternator pulley.
  • A squealing noise might indicate a loose alternator belt.
• Alternator output: The electrical power produced by the alternator.
  • We need to check the alternator output with a multimeter.

Noun

1. an old term for an electric generator that produces alternating current (especially in automobiles)