If you will, please let me first ask you some basic questions. I do this since, of course, I have no idea of your current understanding of basic electrical theory, which as you no doubt realize, directly relates to electronics.
It is entirely OK to reference Google (or any other source) that you wish. I do, many times, every day.
Are you familiar with the difference(s) between AC and DC? If so, what is the primary difference?
Are you familiar with Voltage, Current, Resistance and how they interact?
Are you familiar with Ohm's law? If so, just as a quick test, solve for V if R=100ohms and I=1.5amps.
Are you familiar with Inductance? Capacitance? Can you give me an example use for each?
Thanks for being patient. As I am sure you understand, there's no point in going over stuff you already know.