In the world of electronics Resistor plays a great roll. Resistors are a fundamental component in electrical circuits. To know the value of a register there are Resistor Color Code chart. This color code is divided into 4 segments of a Resistor. From below image red color is brand A, violent is brand B, green is brand C & golden yellow is brand D. Brand C is also know as multiplier. Brand D is technically called Tolerance. In industry you can get Resistors with value 10, 15, 22, 33, 47, 68, 100, 150, 220, 330, 470, 680, 1k, 1.5k, 2.2k, 3.3k, 4.7k, 6.8k, 10k, 15k, 22k, 33k, 47k, 68k, 100k, 150k, 220k, 330k, 470k, 680k ohms.
For example, a Resistor with bands of brown, orange, red, and gold will have first digit 1, second digit 3, followed by 2 zeros: 1,300 ohms. Basic resistors values range from 0.1 Ohm to 10 Megaohms. Gold signifies that the tolerance is ±5%. For high voltage resistors, the colors gold and silver are often replaced with yellow and gray. Zero-ohm resistors are basically wire links which helps to connect the gap in circuit board.
| Color | Value | Multiplier | Tolerance |
| Black | 0 | x100 | – |
| Brown | 1 | x101 | ±1% |
| Red | 2 | x102 | ±2% |
| Orange | 3 | x103 | – |
| Yellow | 4 | x104 | (±5%) |
| Green | 5 | x105 | ±0.5% |
| Blue | 6 | x106 | ±0.25% |
| Violet | 7 | x107 | ±0.1% |
| Gray | 8 | x108 | ±0.05% (±10%) |
| White | 9 | x109 | – |
| Gold | – | x10-1 | ±5% |
| Silver | – | x10-2 | ±10% |
