Resistor color codes use a standardized system of colored bands to indicate resistance value and tolerance.
| Color Bands | Value | Tolerance |
|---|---|---|
| Brown-Black-Red-Gold | 1kΩ | ±5% |
| Red-Red-Orange-Gold | 22kΩ | ±5% |
| Orange-Orange-Brown-Gold | 330Ω | ±5% |
Inductors use color bands to indicate their inductance value and tolerance, similar to resistors but with some key differences.
Most common type for basic inductors:
For more precise specifications:
1µH - 100µH
100µH - 1mH
1mH - 10mH
Ohm's Law is fundamental to understanding electrical circuits and their behavior.