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Questions and Answers
What does the first band on a resistor represent?
What does the first band on a resistor represent?
What is the multiplier for a resistor with a yellow third band?
What is the multiplier for a resistor with a yellow third band?
What is the tolerance of a resistor with a gold fourth band?
What is the tolerance of a resistor with a gold fourth band?
How many bands are used to determine the resistance value and tolerance of a resistor?
How many bands are used to determine the resistance value and tolerance of a resistor?
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What is the significance of the second band on a resistor?
What is the significance of the second band on a resistor?
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What is the resistance value of a resistor with the colors Brown, Black, Red, and Gold?
What is the resistance value of a resistor with the colors Brown, Black, Red, and Gold?
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What does the color blue represent in the standard color code chart?
What does the color blue represent in the standard color code chart?
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What is the value of a resistor with the colors Grey, Green, Orange, and None?
What is the value of a resistor with the colors Grey, Green, Orange, and None?
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What is the primary purpose of Personal Protective Equipment (PPE)?
What is the primary purpose of Personal Protective Equipment (PPE)?
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Which of the following is NOT a type of Personal Protective Equipment (PPE)?
Which of the following is NOT a type of Personal Protective Equipment (PPE)?
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What should you do regularly to ensure the effectiveness of Personal Protective Equipment (PPE)?
What should you do regularly to ensure the effectiveness of Personal Protective Equipment (PPE)?
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What is the purpose of Hazard Warning Symbols?
What is the purpose of Hazard Warning Symbols?
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Which of the following is a type of Hazard Warning Symbol?
Which of the following is a type of Hazard Warning Symbol?
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Why is it important to recognize Hazard Warning Symbols?
Why is it important to recognize Hazard Warning Symbols?
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What should be done to ensure the effectiveness of Hazard Warning Symbols?
What should be done to ensure the effectiveness of Hazard Warning Symbols?
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What is the benefit of wearing Personal Protective Equipment (PPE) consistently?
What is the benefit of wearing Personal Protective Equipment (PPE) consistently?
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What is essential for workers to do in order to prevent accidents and injuries?
What is essential for workers to do in order to prevent accidents and injuries?
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Why is it important to follow the manufacturer's instructions for Personal Protective Equipment (PPE)?
Why is it important to follow the manufacturer's instructions for Personal Protective Equipment (PPE)?
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Study Notes
Resistor Color Codes: Color Code Charts
Resistor color codes are used to identify the resistance value and tolerance of a resistor. The color code chart is a simple way to decode the colors on a resistor.
Standard Color Code Chart
| Color | Digit | Multiplier | Tolerance |
|---|---|---|---|
| Black | 0 | 1 | - |
| Brown | 1 | 10 | - |
| Red | 2 | 100 | - |
| Orange | 3 | 1,000 | - |
| Yellow | 4 | 10,000 | - |
| Green | 5 | 100,000 | - |
| Blue | 6 | 1,000,000 | - |
| Violet | 7 | 10,000,000 | - |
| Grey | 8 | 100,000,000 | - |
| White | 9 | 1,000,000,000 | - |
| Gold | - | 0.1 | ±5% |
| Silver | - | 0.01 | ±10% |
| None | - | - | ±20% |
How to Read the Chart
- First Band (Digit): The first band on the resistor represents the first significant digit. Match the color to the digit in the chart.
- Second Band (Digit): The second band represents the second significant digit. Match the color to the digit in the chart.
- Third Band (Multiplier): The third band represents the multiplier. Match the color to the multiplier in the chart.
- Fourth Band (Tolerance): The fourth band represents the tolerance. Match the color to the tolerance in the chart.
Example: A resistor with the colors Brown, Black, Red, and Gold would have a resistance value of 1000 ohms with a tolerance of ±5%.
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Description
Learn how to read and decode resistor color codes to determine the resistance value and tolerance of a resistor. Understand the standard color code chart and how to apply it.
