Circuit Laws And Analysis

The rules that govern how components share a circuit — series and parallel, Kirchhoff's laws, and the analysis tools that turn a schematic into predicted voltages and currents at every point.

• 2.1Series CircuitsOne path, one current — how components wired end to end share a single loop, split the voltage between them, and fail in the telltale way that makes series faults easy to spot.Beginner+Low Risk22 min read
• 2.2Parallel CircuitsMany paths, one voltage — how components wired side by side share the same voltage, split the current between them, and keep working when one branch fails.Beginner+Low Risk22 min read
• 2.3Kirchhoff's Voltage LawThe loop rule — around any closed path every volt supplied is a volt used up, making the 'drops add up to the source' preview official and turning it into a fault-finding tool.Beginner+Low Risk22 min read
• 2.4Kirchhoff's Current LawThe node rule — every amp that flows into a junction flows back out, because charge never piles up. The companion to KVL that completes the toolkit for any resistive network.Beginner+Low Risk22 min read
• 2.5Thevenin and Norton EquivalentsCollapse any tangle of sources and resistors into one source and one resistance. The shortcut that turns a whole network into something you can reason about at a glance.IntermediateLow Risk26 min read
• 2.6Superposition PrincipleIn a linear circuit, one source at a time. Isolate what each supply contributes on its own, then add the pieces — the tool that untangles a circuit driven by more than one source.IntermediateLow Risk24 min read
• Chapter Quiz48questions · 80% required to continue