I need help understanding how to make simple circuits? Answered
I'm very new to electronics, and I want to understand the basics of making simple circuits. For the longest time, I have not understood how people can determine how much power is needed for X amount of LEDs, and how much resistance and so on. Yes, I have taken a physics class, but I'm very rusty on it all :P I hardly remember any of it and I'm hoping the community will help me out. So again to sum up my problem, I need help determining how to make simple circuits that include things like light dependent resistors, LEDs, motors, and simple things like that and especially how do I determine how much voltage, amps, and resistance I will need in the circuits.