well i 'v got this ............How to calculate



The colored bands on a resistor



represent a code for determining resistance.



The 1rst two colors give the 1rst



two digits in the resistance value. The third



color represents the power of ten for the



multiplier of the resistance value. The last



color is the tolerance of the resistance



value. As an example, the four colors on



the circled resistors are red black



orange and gold



and so the resistance value is 20 * 10³ =



20 k with a tolerance value of 5% = 1 k.



 

@sahil madaan12         thanx fr trick