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Wednesday, 31 October 2012

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

   

Tuesday, 30 October 2012

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%

Sunday, 28 October 2012

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
   


                         

Saturday, 20 October 2012

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

Thursday, 18 October 2012

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

Monday, 15 October 2012

Physics for X std

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