Power Sources in Series/Parallel....? hey, i've got a question. say you had one power source thats about 4v and another that's about 3v. if you hooked them up in parallel the following power source would be (now im' pretty sure im doing this right..if not..well im not an electrical engineer, which is why im coming here for such a basic question) about 7v, but what would the amps be? because i know that in parallel the voltages add up (and for loads it isn't a continuous voltage drop, it depends on resistance right?). Same for series, what would teh voltage be (and amps) if you hooked it up in series, since in series (i'm pretty sure) the voltage drop/gain is constant around the circuit. now for all i know this may not even be possible...so any help on this at all would be helpful.