Color code bands on resistors for identifying resistance and tolerance values.
Diagram showing 4-band, 5-band, and 6-band resistors with color bands for identifying resistance value and tolerance.
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Show Answer Key & Explanations
Step-by-step solution for: Resistor colour code. | PDF
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Show Answer Key & Explanations
Step-by-step solution for: Resistor colour code. | PDF
It looks like you've uploaded a document titled "Experiment no.01: Colour Code of Resistor", which explains the theory and setup for identifying resistor values using color codes. However, there is no image or specific problem included in your message — only the text of the experiment outline.
Let me break down what this experiment is about and how to interpret resistor color codes, so you can solve any related problem (e.g., determining resistance value from color bands).
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Resistors use colored bands to indicate their resistance value and tolerance. There are two common types:
#### ✔ 4-Band Resistor
- Bands: 1st digit | 2nd digit | Multiplier | Tolerance
- Example: Brown Black Red Gold → 1 0 × 100 = 1000 Ω ±5%
#### ✔ 5-Band Resistor
- Bands: 1st digit | 2nd digit | 3rd digit | Multiplier | Tolerance
- Used for higher precision resistors (e.g., 1% tolerance)
- Example: Brown Black Black Orange Brown → 1 0 0 × 10³ = 10,000 Ω ±1%
#### ✔ 6-Band Resistor
- Bands: 1st digit | 2nd digit | 3rd digit | Multiplier | Tolerance | Temperature Coefficient
- The sixth band indicates temperature coefficient (ppm/°C), usually used in precision resistors.
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Use the Resistor Color Code Chart:
| Color | Digit | Multiplier (Ω) | Tolerance |
|--------|-------|----------------|-----------|
| Black | 0 | 1 | — |
| Brown | 1 | 10 | ±1% |
| Red | 2 | 100 | ±2% |
| Orange | 3 | 1,000 | — |
| Yellow | 4 | 10,000 | — |
| Green | 5 | 100,000 | ±0.5% |
| Blue | 6 | 1,000,000 | ±0.25% |
| Violet | 7 | 10,000,000 | ±0.1% |
| Gray | 8 | 100,000,000 | ±0.05% |
| White | 9 | 1,000,000,000 | — |
| Gold | — | 0.1 | ±5% |
| Silver | — | 0.01 | ±10% |
> ⚠️ Note: The last band (usually gold/silver or colored) is tolerance or temperature coefficient.
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Suppose you're given a resistor with the following bands:
- Brown, Black, Red, Gold (4-band)
Step-by-step:
1. First band (Brown) = 1
2. Second band (Black) = 0 → So first two digits = 10
3. Third band (Red) = multiplier ×100 → 10 × 100 = 1000 Ω
4. Fourth band (Gold) = ±5% tolerance
✔ Final answer: 1000 Ω ±5% or 1 kΩ ±5%
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- Always start from the band closest to one end.
- The gold or silver band is usually on the right side (tolerance).
- If unsure, look for the gap between bands – it often separates the value from tolerance.
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Since your document includes figures of 4-, 5-, and 6-band resistors but does not show actual colors, I cannot determine the exact values unless you provide:
- A description of the colors on each band
- Or upload an image showing the actual resistor colors
---
Please provide:
1. The color sequence of the resistor(s) in the figure (e.g., "Brown, Red, Yellow, Gold")
2. Or upload the image with visible color bands
Once I have that, I’ll calculate the resistance value and tolerance for you!
Let me know! 😊
Let me break down what this experiment is about and how to interpret resistor color codes, so you can solve any related problem (e.g., determining resistance value from color bands).
---
🔍 Understanding Resistor Color Codes
Resistors use colored bands to indicate their resistance value and tolerance. There are two common types:
#### ✔ 4-Band Resistor
- Bands: 1st digit | 2nd digit | Multiplier | Tolerance
- Example: Brown Black Red Gold → 1 0 × 100 = 1000 Ω ±5%
#### ✔ 5-Band Resistor
- Bands: 1st digit | 2nd digit | 3rd digit | Multiplier | Tolerance
- Used for higher precision resistors (e.g., 1% tolerance)
- Example: Brown Black Black Orange Brown → 1 0 0 × 10³ = 10,000 Ω ±1%
#### ✔ 6-Band Resistor
- Bands: 1st digit | 2nd digit | 3rd digit | Multiplier | Tolerance | Temperature Coefficient
- The sixth band indicates temperature coefficient (ppm/°C), usually used in precision resistors.
---
🎯 How to Read Resistor Color Bands
Use the Resistor Color Code Chart:
| Color | Digit | Multiplier (Ω) | Tolerance |
|--------|-------|----------------|-----------|
| Black | 0 | 1 | — |
| Brown | 1 | 10 | ±1% |
| Red | 2 | 100 | ±2% |
| Orange | 3 | 1,000 | — |
| Yellow | 4 | 10,000 | — |
| Green | 5 | 100,000 | ±0.5% |
| Blue | 6 | 1,000,000 | ±0.25% |
| Violet | 7 | 10,000,000 | ±0.1% |
| Gray | 8 | 100,000,000 | ±0.05% |
| White | 9 | 1,000,000,000 | — |
| Gold | — | 0.1 | ±5% |
| Silver | — | 0.01 | ±10% |
> ⚠️ Note: The last band (usually gold/silver or colored) is tolerance or temperature coefficient.
---
🔧 Steps to Solve a Resistor Problem
Suppose you're given a resistor with the following bands:
- Brown, Black, Red, Gold (4-band)
Step-by-step:
1. First band (Brown) = 1
2. Second band (Black) = 0 → So first two digits = 10
3. Third band (Red) = multiplier ×100 → 10 × 100 = 1000 Ω
4. Fourth band (Gold) = ±5% tolerance
✔ Final answer: 1000 Ω ±5% or 1 kΩ ±5%
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💡 Tips for Reading Resistors
- Always start from the band closest to one end.
- The gold or silver band is usually on the right side (tolerance).
- If unsure, look for the gap between bands – it often separates the value from tolerance.
---
❓ What’s Missing?
Since your document includes figures of 4-, 5-, and 6-band resistors but does not show actual colors, I cannot determine the exact values unless you provide:
- A description of the colors on each band
- Or upload an image showing the actual resistor colors
---
✔ Next Steps
Please provide:
1. The color sequence of the resistor(s) in the figure (e.g., "Brown, Red, Yellow, Gold")
2. Or upload the image with visible color bands
Once I have that, I’ll calculate the resistance value and tolerance for you!
Let me know! 😊
Parent Tip: Review the logic above to help your child master the concept of resistor color code worksheet.