Hello everyone. This should be a fairly simple question to answer because I should really already know. Anyway, I was just wondering how exactly a battery is recharged in an AC circuit. In particular, I was looking at an electric car's rechargable battery. I know when you plug the car in the alternating current in the first coil causes magnetic flux thus causing an induced current in the other coil. However, isn't this second current also alternating? And if so, how is an alternating current used to charge a battery. Thank you for your time.