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Resistor Chart

Charts Color Value Multiplier Tolerance
 

 
Black 0 1
 

 
Brown 1 10 1 %

 
Red 2 100 2 %
Series Resistance Math:
    RT = R1 + R2 + R3
Parallel Resistance Math:
    1/RT = 1/R1 + 1/R2 + 1/R3

 
Orange 3 1,000 3 %

 
Yellow 4 10,000 4 %
 

 
Green 5 100,000  

 
Blue 6 1,000,000  

 
Violet 7 10,000,000  

 
Grey 8 100,000,000  

 
White 9    

 
Gold
 
0.1
 

 
Silver
 
0.01 10 %
none
 

 

 
20 %

P = Power (Watts)  I = Current (Amperes) R = Resistance (Ohms)
E = Voltage (Volts) Z = Impedance (Ohms) ( For AC circuits, substitute Z for R )


 
 




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