Common Electronics Knowledge Questions
November 26, 2009
Hi LMR. I have already made a robot, as you may know, but all I did (on the physical/electrical side of things) was plug a few cables into the pre-made servo ports on the Board of Education, as my copy of Electronics for Dummies told me to do. I read the entire thing, but they explained a few things in a way I didn't understand. Like the names for stuff, and what each means. Until now, I thought voltage was a measure of battery capacity. I FAIL, I know. I've sorted it out, so now I know about amps and volts, but I have a couple technical questions regarding electricity. I'm just trying to learn the ropes.
Is Amperage reusable? Say I have a battery putting out 2000 MaH. If I run a single servo drawing 1000 MaH off of it, do I only have 1000 MaH left to work with, or can I use up to the full 2000 MaH?
Can I go over the MaH specified? Say I want to run 4 servos, each with a 1000 MaH draw, off of a 2000 MaH battery. Would I still get 30 minutes of runtime, although I am drawing double the amperage per hour then it can supply? How much more can I draw? Could I do 32,000 MaH on a 2000 MaH battery?
If I link batteries in series, it increases the voltage (i.e. the electricity's speed), but does it also increase the Amperage per Hour? Say if I linked two 2000 MaH, 4.5 V batteries in series. I would get 9V but would I also get 4000 MaH?
When a servo has 3 pins (+, -, Signal) some people call - the ground. Does it go to the positive end of the battery, or an actual ground? There is a pin on my BS2 that's called ground, does that work for this application?
Thanks for your time and patience. It helps a lot (more then electronics for dummies).