April 1, 2017

Some Mnemonic phrases for remembering Color Codes of Resistor in Electronics.


Identifying Resistors:

The electronic color code is used to indicate the values or ratings of electronic components, usually for resistors, but also for capacitors, inductors, diodes and others. A separate code, the 25-pair color code, is used to identify wires in some telecommunications cables.

Most axial resistors use a pattern of colored stripes to indicate resistance. SMT ones follow a numerical pattern. Cases are usually brown, blue, or green, though other colors are occasionally found like dark red or dark gray.

Resistor Color Codeing: 

Black, Brown, Red, Orange, Yellow, Green, Blue, Violet, Gray, White (Gold Silver).

Mnemonic phrases for remembering color codes of resistor:

There are many mnemonic phrases used to remember the order of the colors. They are, but are not limited to, and variations of: 
  • Bad Boys Ravish Our Young Girls But Violet Gives Willingly.
  • Bad Beer Rots Our Young Guts, But Vodka Goes Well. Get Some Now!  
  • B.B. ROY of Great Britain had a Very Good Wife.
  • Buffalo Bill Roamed Over Yellow Grass Because Vistas Grand Were God's Sanctuary. 
  • Bully Brown Ran Over a Yodeling Goat, Because Violet's Granny Was Gone Snorkeling.
  • Buy Better Resistance Or Your Grid Bias May Go Wrong.
  • Bill Brown Realized Only Yesterday Good Boys Value Good Work.
  • Better Be Ready Or Your Great Big Plan Goes Wrong.
  • Better Be Ready Or Your Great Big Venture Goes West.
  • Black Bananas Really Offend Your Girlfriend But Violets Get Welcomed.
  • Black Birds Run Over Your Biting Visible Gray Worms.
  • Big Boys Race Our Young Girls But Violet Generally Wins.
  • Black Boys Rape Our Young Girls Behind Victory Garden Walls.
  • Black Boys Rape Our Young Girls But Virgins GWithout.

Explanation: 

To remember the color bands on resistors in order of increasing magnitude.
  • Numerically the value (0-9) of a resistor via the color-coded bands: Black (0), Brown (1), Red (2), Orange (3), Yellow (4), Green (5), Blue (6), Violet (purple, 7), Gray (8), and White (9).
  • Also, note that the red through violet are the colors of the rainbow (in order). Although the ROY G. BIV mnemonic for rainbow colors includes indigo between blue and violet.

Figure 1: A diagram of a resistor, with four color bands A, B, C, D from left to right.

Figure 2: A diagram of a 2.7 Mega Ω color coded resistor. 

To distinguish left from right there is a gap between the C and D bands.

  • Band A is the first significant figure of component value (left side)
  • Band B is the second significant figure (some precision resistors have a third significant figure, and thus five bands).
  • Band C is the decimal multiplier
  • Band D if present, indicates tolerance of value in percent (no band means 20%)
For example, a resistor with bands of yellow, violet, red, and gold has first digit 4, second digit 7 (violet), followed by 2 (red) zeros: 4,700 ohms. Gold signifies that the tolerance is ±5%, so the real resistance could lie anywhere between 4,465 and 4,935 ohms.
Figure 3: 4.7 Kilo Ω resistor with ±5% tolerance.

All coded components have at least two value bands and a multiplier; other bands are optional.

comments

5 Comment(s):

  1. EXPOSE THE CONSPIRACY! GOD AND THE DEVIL ARE BACKWARDS!! DON'T LET GUILT-FEELINGS, FEAR AND OTHER KINDS OF EMOTIONAL MANIPULATION RULE YOUR CHOICES IN LIFE!!

    http://joyofsatan.org/
    http://exposingchristianity.org/
    https://exposingthelieofislam.wordpress.com/
    http://www.666blacksun.net/

    ReplyDelete
  2. Hey, that’s really a good post on Manufacturers in Delhi, i really like your blog as the information is very useful if you are a pet lover. Well, there is one more site for the same service www.helpadya.com you should check it for more detail.

    ReplyDelete
  3. I remember as a young adult I had trouble wiring a plug. Thankfully I have progressed!

    ReplyDelete
  4. I am appreciative to this blog for helping me. I included some predefined intimations which are truly critical for me to utilize them in my written work aptitude. Truly supportive stuff made by this blog.
    Tibco BW Interivew Questions
    BW Interview Questions and Answers
    TekSlate

    ReplyDelete
  5. <a href="http://blog.easyshiksha.com/2018/01/top-5-tips-to-crack-job-interview.html>
    TOP 5 Tips to crack a job interview</a>

    ReplyDelete

Related Posts Plugin for WordPress, Blogger...