I have a large capacitor that I'd like to check, but it's above the 10,000uF my multimeter can do.
I think that there should be a formula that would take (a) time (b) voltage A (c) voltage B (d) resistance, and calculate capacity.
That is, say I charge the capacitor to 30V, put a 10000ohm resistor across the leads, and in say 30 seconds it reads 1V. According to my understanding of Ohm's law those 4 variables should be enough to calculate capacity. But I'm not smart enough to come up with a formula on the fly.
I think that there should be a formula that would take (a) time (b) voltage A (c) voltage B (d) resistance, and calculate capacity.
That is, say I charge the capacitor to 30V, put a 10000ohm resistor across the leads, and in say 30 seconds it reads 1V. According to my understanding of Ohm's law those 4 variables should be enough to calculate capacity. But I'm not smart enough to come up with a formula on the fly.