I want to use my Corsair 430CX as a benchtop power supply to do small circuit work. I am fuzzy on the theory however when it comes to the amount of amperage that the rail can support. It worries me, the amount of current possible that can come out of these rails and i want to know what I am dealing with in terms of working with small circuits.
I understand ohms law to the extent that the voltage should be the determining factor in whether or not i release magic smoke, I mean this in the sense that wattage or volts * amperage does not come into play when working with circuits. I may be entirely wrong on this front. I picture myself connecting a 1/8 watt or 1/4 watt 1MOhm resistor across a 50aH 12v car battery and can't believe in the math. I feel like I would release magic smoke and endanger myself.
Can someone validate the theory or enlighten me because all that I have read so far makes me think I can create small circuits with a 12v 30amp rail and 300+ watts and be fine when I picture it being very different from working with a small a23 12v battery. Surely these cannot be the same things, can they?