Resistors are common passive electronic parts (meaning they don't need power to run) for circuitbuilding. Resistors control currents and voltages and they're manufactured in a variety of ways. Use this table to read resistor color codes for circuitbuilding:
| Color | Value Stripe | Multiplier Stripe | Tolerance Stripe |
|---|---|---|---|
| Black | 0 | times; 1 (100) | |
| Brown | 1 | times; 10 (101) | 1% |
| Red | 2 | times; 100 (102) | 2% |
| Orange | 3 | times; 1000 (103) | |
| Yellow | 4 | times; 10,000 (104) | |
| Green | 5 | times; 100,000 (105) | 0.5% |
| Blue | 6 | times; 1,000,000 (106) | 0.25% |
| Violet | 7 | times; 10,000,000 (107) | 0.1% |
| Gray | 8 | times; 100,000,000 (108) | 0.05% |
| White | 9 | times; 1,000,000,000 (109) | |
| Gold | times; 0.1 | 5% | |
| Silver | times; 0.01 | 10% | |
| No color | 20% |
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Source:http://www.dummies.com/how-to/content/circuitbuilding-and-resistor-color-codes.html
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