Colour code of resistors, Physics

Assignment Help:

Colour code of resistors:

The current method of colour code marking of resistors is the Band System.

1643_color code.png

Close to one end of the resistor are four coloured bands (there may appear to be only three, in this case the forth band is 'no colour' - see diagram below).  They are known as bands 1 - 4.  Bands 1 and 2 give the first two numbers of the resistor value, band 3 gives the multiplication factor, i.e. the number of zeros, the fourth band gives the tolerance, which indicates how close the actual value may be to the stated value.

Colour

First band

(or body)

First figure

Second band

(or tip)

Second figure

Third band

(or spot)

Multiply by

Fourth band

Tolerance

Black

0

0

1

-

Brown

1

1

10

+1%

Red

2

2

100

+ 2%

Orange

3

3

1000

-

Yellow

4

4

10,000

-

Green

5

5

100,000

+ 0.5%

Blue

6

6

1,000,000

+ 0.25%

Violet

7

7

10,000,000

+ 0.1%

Grey

8

8

-

-

White

9

9

-

-

Gold

-

-

0.1

+  5%

Silver

-

-

0.01

+ 10%

No colour

-

-

-

+ 20%

Certain resistors remain very close to their stated value, despite temperature changes.  These are called 'high stability' resistors and this is shown by a fifth band coloured 'pink'.

 

 

 


Related Discussions:- Colour code of resistors

Internal energy, mayer''s relationship connecting Cp and Cv

mayer''s relationship connecting Cp and Cv

What is head-on collision, HEAD-ON COLLISION:  "If the centers of the c...

HEAD-ON COLLISION:  "If the centers of the colliding bodies stay moving along the similar straight line, the collision is said to be head-on collision".

Numbers, John is traveling north at 20 meters/second and his friend Betty ...

John is traveling north at 20 meters/second and his friend Betty is traveling south at 20 meters/second. If north is the positive direction, what are John and Betty''s speeds?

Superfluidity, Superfluidity: The phenomena through which, at sufficie...

Superfluidity: The phenomena through which, at sufficiently low temperatures, a fluid can flow along zero viscosity. Its causes are related with superconductivity.

Centrifugal force with a beaded chain, Centrifugal force with a beaded chai...

Centrifugal force with a beaded chain Secure a length of beaded chain like that frequently used for pull cord on electric light switches or for key chains. Fasten the ends toge

Couple forces, is it possible for the couple forces to be more than two?

is it possible for the couple forces to be more than two?

What is the magnitude of the component, A 105-N suitcase sits on a rubber r...

A 105-N suitcase sits on a rubber ramp at an airport carousel at a 25° angle. The weight vector can be broken into two perpendicular components. a. What is the magnitude of the

Work out the voltage, Work out the  voltage for the following arrangement ...

Work out the  voltage for the following arrangement of 1.5V cells: ( Solve problems with cells in series, parallel and series-parallel)

Ultrasonic-interferameter , Ultrasonic-interferameter 1.defenition 2.app...

Ultrasonic-interferameter 1.defenition 2.applications 3.uses 4.free lenth 5.Compressibility Ans)An Ultrasonic Interferometer is a easy and direct device to determine the ul

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd