Resistor Color Code
This interactive simulator explores Resistor Color Code in Electricity & Magnetism. Click bands to see resistance, or enter value to see bands. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.
Who it's for: Suited to beginners and first exposure to the topic. Typical context: Electricity & Magnetism.
Key terms
- resistor
- color
- code
- resistor color code
- electricity
- magnetism
Interactive bands
Leads (silver) — tan body — four bands
How it works
Four-band resistors encode two significant digits, a decimal multiplier, and tolerance. Click each band to cycle colors, or enter a target resistance (supports k/M/G suffixes) to snap the bands to the nearest valid 4-band code.
Key equations
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