Are these diodes on or off?
Here's another bad water analogy.



simulate this circuit &ndash; Schematic created using CircuitLab
Figure 1. &quot;I told you this was bad.&quot;

Water is being fed from a +15 m head through a pipe with some resistance to flow.
There are two outlets - one at +10 m and one at -15 m.

To what level do you think the tank will fill?