Can somebody please explain to me how you exactly determine whether a diode conducts (shorted) or is cutoff (opened)? I found a couple of posts on this but I wasn't able to justify the answers myself, probably something I'm doing wrong. It was said that the anode should be greater than the cathode for the diode to conduct but it's not making any sense to me in these examples.
The answers are: for (a), D1 is cutoff and D2 is conducting. V = 2V, I = 3.5mA (b) D1 is conducting, D2 is cutoff. V = 1V, I = 2mA