Is it possible to apply too much current to devices? Answered
Again, another silly question. A lot of my projects are going to need batteries (as they will be used in props). I have a decent understanding of how electricity works and all that, as I have done quite a few things with it from the ground up (that is, I didn't copy a pre-existing set of plans). But with all the stuff I'm planning to do, I'm having issues keeping up with it all, mainly due to the fact that I am a tad unsure on amperage draw and amperage supply.
For the sake of understanding for myself, lets say I try and run an arduino nano using a battery pack that spits out 12v/2a. Will the arduino only take what it needs, or will it try and take all of what it is given and 'burn' up.
Alterativly, if I were to use a 5v/1a peltier element, will it also only pull what it needs, or will it burn up?
I would assume the peltier would just burn, as it has no way to limit what it's pulling, while the arduino will regulate what it's getting.
Thanks in advance!