Resistor Color Coding

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Resistor Color Coding

Performing Mensuration and Calculation

Standard Resistor Values and Color

Resistor Color Coding

It uses colored bands to quickly identify a resistors resistive value and its percentage of tolerance with the physical size of the resistor indicating its wattage rating.

Components and wires are coded with colors to identify their value and function. 

The most commonly used electronic components in the field are known as resistors. Resistor is a discrete component that offers opposition to the flow of current.

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RESISTOR

Generally, the resistance value, tolerance, and wattage rating are printed on the body of a resistor as numbers or letters when the resistors body is big enough to read the print, such as large power resistors.

But when a resistor is smaller (example: 1/4 watt carbon or film type), the print is too small to read, so the specifications must be shown in another way.

Open Ended

If you are still with me, kindly write your favorite color.

Color

Digit

Multiplier

Tolerance (%)

Black

0

100(1)

Brown

1

101

1

Red

2

102

2

Orange

3

103

Yellow

4

104

Green

5

105

0.5

Blue

6

106

0.25

Violet

7

107

0.1

Grey

8

108

White

9

109

Gold

10-1

5

Silver

10-2

10

(none)

20

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Multiple Choice

What is the value of a resistor with the following colors:

Green - Black- orange - Gold?

• A) 500 Ohms ± 5%

• B) 5K Ohms ± 5%

• C) 50K ohms ± 5%

• D) 500 K Ohms ± 5%

Multiple Choice

2. What is the color of the tolerance representing ± 5%?

• A) Gold

• B) Black

• C) Orange

• D) Silver

Multiple Choice

3. 5 in the second band of the resistor color coding means?

• A) Brown

• B) Green

• C) Red

• D) Yellow

Multiple Choice

4. Which component is a discrete type?

• A) Power IC

• B) Regulator IC

• C) Resistor

• D) Digital IC

Multiple Choice

5. Resistor is a component that resists the flow of _____________.

• A) Current

• B) Capacitance

• C) Power

• D) Voltage

​Thank You!