Good Afternoon Everyone, This forum and website has been very helpful as I dust up on my reviews of the basics! In Vol. I, Ch. 7 Building Series-Parallel Resistor Circuits: Series Parallel Combination Circuits, the last two diagrams show resistors with their polarities labeled. Can someone explain to me 1) a simple way to label the polarity of a resistor in a circuit and 2) how it applies to the circuit shown in that chapter? I think understanding the polarities will help me better understand the wiring configuration used in the terminal strip shown in that chapter. Many thanks in advance!