Parsing various resistor band colors is fairly simple once you know what each color means. Orient the resistor with the gold or silver band on the far right.

While there are LEDs available with integrated dropping resistors, building your own means you can use whatever LEDs you prefer — or simply have on hand — and adjust the resistor value for ...

Discover how resistors convert electrical energy into heat, how different materials affect resistance levels, and how color codes are used to identify resistor values in electronics.