Hello everyone,
Thanks for your input.
Regarding the color of tolerance bands, I guess the following colors are used.
When the resistor has four bands, it indicates standard precision resistors. The tolerance of standard precision resistors range from 2% to 20%. Hence possible colors of tolerance band for four band resistors must be red, orange, yellow, gold, silver with their tolerance being 2,3,4,5,10% respectively.
If the resistor has five bands, it indicates high precision resistor. Its tolerance is less than 1%. Hence for five band resistors, the colors used in tolerance band must be green,blue, violet and gray with their respective tolerance being 0.5, 0.25, 0.1 and 0.05 respectively.
What do u say?