Why DC voltages in series do sum (or subtract, according to polarity)?

Published: 5/10/2017
Why DC voltages in series do sum (or subtract, according to polarity)?
Source: ELECTRONICS.STACKEXCHANGE.COM

This is a newbie question. It is clear that if you put two (or more) DC voltage sources in series like this: simulate this circuit – Schematic created using CircuitLab And you measure total voltage between A and D you get the sum of the two voltages. I also realized that if you flip one of the sources, its voltage is to be subtracted from the total. So if I flip V1, I get a total voltage of

Read more
Related news
Comment