First off, I'd like to say that I am completely new to electronics and the way circuits work, so this may be a really dumb question.
I've tried searching Google but I can't really find what I'm looking for since I'm new to all this.
Basically, I'm trying to get a pencil graphite to produce some smoke.
When I connect one part of graphite to the +5V Arduino pin and other to ground, it smokes for a bit before Arduino's short-circuit protection kicks in.
The above works as expected, but when I connect it the same to the 9V battery as the source, the graphite barely warms up.
So my question is - why does Arduino's 5V make graphite smoke while the 9V battery doesn't?