Q: Can you tell me what the difference is between a generator and an alternator? I realize this isn’t a car question but I can’t seem to get a simple answer from people I know.

Cars use a type of AC generator, called an alternator , to keep the battery charged and to run the electrical system while the engine is working. The diagram shows a simple AC generator.

AC vs DC: Know here what is the difference between AC and DC. AC stands for alternating current whereas DC stands for Direct Current. Check key dissimilarities here.

AC and DC power differ in direction, usage, and efficiency. Learn the basics of how alternating and direct current work and where each is used.

Not sure what separates AC from DC power? This beginner-friendly guide breaks down the differences in how they flow, work, and power your world.