Prof. Ed 9 ELX-2Group Activity:
ELECTRONICS RESISTOR COLOR CODING (ERCC).
Standard Resistor Values and Color
Components and wires are coded with colors to identify their value and function.
Resistor Color Coding 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.
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.
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
The colors brown, red, green, blue, and violet are used as tolerance codes on 5-band resistors only. All 5-band resistors use a colored tolerance band.
The blank (20%) “band” is only used with the “4-band” code (3 colored bands + a blank “band”).
The colors brown, red, green, blue, and violet are used as tolerance codes on 5-band resistors only. All 5-band resistors use a colored tolerance band.
The blank (20%) “band” is only used with the “4-band” code (3 colored bands + a blank “band”).
Yellow-Violet-Orange-Gold Color Code
A resistor colored Yellow-Violet-Orange-Gold would be 47 kΩ with a tolerance of +/- 5%.
Green-Red-Gold-Silver Color Code
A Resistor colored Green-Red-Gold-Silver would be 5.2 Ω with a tolerance of +/- 10%.
White-Violet-Black Color Code
A resistor colored White-Violet-Black would be 97 Ω with a tolerance of +/- 20%. When you see only three color bands on a resistor, you know that it is actually a 4-band code with a blank (20%) tolerance band.
Orange-Orange-Black-Brown-Violet Color Code
A resistor colored Orange-Orange-Black-Brown-Violet would be 3.3 kΩ with a tolerance of +/- 0.1%.
Brown-Green-Grey-Silver-Red Color Code
A resistor colored Brown-Green-Grey-Silver-Red would be 1.58 Ω with a tolerance of +/- 2%.
Blue-Brown-Green-Silver-Blue Color Code
A resistor colored Blue-Brown-Green-Silver-Blue would be 6.15 Ω with a tolerance of +/- 0.25%.
FEATURES OF THE (ERCC).
*sample activity
*Sample practice form
*With answer keys for all the activity
*With reset option for answering the activities but don't have editing features. (For the reason that the subscribers will not cheat and skip for finding the provided answer key.
= this a drill and practice software
= As a student and as we look forward in our future are we knew that resistor as a component is necessary to be familiarized, because as we, electronics technology student clearly understand that any electronic devices need a resistor for them to run.
= It will work by downloading the app with our logo the ELX-TM letters below the logo design.
References: https://www.allaboutcircuits.com/textbook/reference/chpt-2/resistor-color-codes/
-https://youtube.com/watch?v=G1mZutobxDU&feature=share
"In teaching others we teach ourselves" - Proverb
Have Fun!
The Team at Educator Pages
https://www.allaboutcircuits.com/textbook/reference/chpt-2/resistor-color-codes/ https://youtube.com/watch?v=G1mZutobxDU&feature=share