In the circuit below:
I find it awkward that the direction of the current on the 2V power supply is running opposite to the direction of the current on the 5V power supply. In the 5V power supply the current flows from
+ but in the 2V power power supply the current flows from
Mathematically, it all works out and the numbers add up but I am having a little bit of a hard time gaining some intuition regarding what is going on with this "backwards" current.
Here are a couple of questions:
If the 2V power supply was a battery, would this mean that the battery would be charging? If that was the case, would the battery eventually explode due to overcharging?
If the 2V power supply was a regular power supply (connected to the wall) why is the power supply not breaking? The power supply is not a battery, right? So there should be no such thing as "charging" a power supply so why do I not see smoke coming out of the power supply given that I am going against the natural flow of electrons?