Concepts

Electrical Components

Resistors, capacitors, inductors, diodes, relays and other building blocks.

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The resistor limits current and sets voltage levels. Learn its color code, power rating, series and parallel rules, and how to t...

A capacitor stores charge and energy in an electric field. Learn capacitance, energy, series and parallel rules, reactance, time...

An inductor stores energy in a magnetic field and opposes changes in current. Learn inductance, reactance, time constants, satur...

A diode conducts current mainly in one direction. Learn forward drop, reverse blocking, rectification, LED resistor sizing and s...