How to memorize color code of resistor

How to memorize color code?

         Students can easily memorize the color code by easy  method

                                                           "B B ROY Great Britain Very Good Wife"

             

B	Black	0
B	Brown	1
R	Red	2
O	Orange	3
Y	Yellow	4
Great	Green	5
Britain	Blue	6
Very	Violet	7
Good	Grey	8
Wife	White	9

   

Color Code Table

         
     

                          Color Code Table

Color	First Band digit	Second Band digit	Third Band multiplier	Tolerance
Black	0	0	100=1
Brown	1	1	101=10	1%
Red	2	2	102=100	2%
Orange	3	3	103=1000	3%
Yellow	4	4	104=10000	4%
Green	5	5	105=100000
Blue	6	6	106=1000000
Violet	7	7	107=10000000
Grey	8	8	108=100000000
White	9	9	109=1000000000
Gold	-	-	-	5%
Silver	-	-	-	10%
None	-	-	-	20%

How to read color codes

How to read color code


The first and second band represent the numeric value of the resistor and the color of the third band represent the power of the tenth multiplier
Bands should always read from the left to right
The fourth band represent the tolerence of the band
   

                                

Color code for resistors

Color code for resistors
 Carbon composition and carbon film resistors to small to have the resistance value printed on there resistance, There fore bands of color are used to represent the resistance value
   

                         

Types of Resistors

                            Types of Resistors

There are two types of resistors.
     1.Fixed resistors
     2.Variable resistors


                Fixed Resistors are again classified in to
                             1. Carbon composition type resistors
                             2. Wire wound resistors
                             3. Metalized resistors

Resistance

                                                     RESISTANCE

     Resistance of the object defined as the ratio of voltage across the current

                                          It is represented by R

                                             R=V/I

                                          V is voltage

                                           I is current

                                  Unit of resistance is Ohm

Physics for X std

 Introdution
     We can see all the explanations for Xth students
      We will give all correct explanations and derivations