Practice question

What is the function of the 'Alternator' in a modern vehicle electrical system?

To generate alternating current (AC) and convert it to direct current (DC) to charge the battery and power electrics when the engine runs
To convert direct current from the battery to high voltage AC for the spark plugs
To crank the engine flywheel to start the combustion cycle
To store electrical energy chemically for use when the engine is off

Answer: A — To generate alternating current (AC) and convert it to direct current (DC) to charge the battery and power electrics when the engine runs

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