This question was inspired by this one: Determine Polaritry of Aluminum Electrolytic Capacitor.
I thought that the question would be on how to determine the polarity if there are no markings and the leads have already been cut. The question was different, and the curiosity remained unsatisfied.
I found this question which is also not that into electronics, but the accepted answer suggests that measuring the capacitor's case voltage may indicate the reverse polarity. It seems interesting.
- How the polarity of an electrolytic aluminium capacitor can be determined experimentally?
- Why would the voltage of the case be different when the capacitor is reverse biased?