DC Electricity
Direct-current circuits: series, parallel, dividers and systematic analysis.
Direct Current (DC) Electricity
Direct current flows in one direction at a steady value. Learn DC sources, battery capacity, energy calculations and why vehicle...
Series Circuits
In a series circuit, components form a single path so the same current flows through each. Learn series resistance, voltage divi...
Parallel Circuits
In a parallel circuit, branches share the same voltage and currents add. Learn equivalent resistance, branch currents and why ve...
Series–Parallel Circuits
Most real circuits combine series and parallel sections. Learn how to reduce a network step by step, find branch currents and ve...
Voltage Divider
A voltage divider uses two resistors to produce a fraction of the input voltage. Learn the formula, the loading effect and where...
Current Divider
A current divider splits a total current between parallel branches. Learn the formula, why the smaller resistance takes more cur...