Carbon resistors often come as a brown cylinder with colored bands. These colore
ID: 1590587 • Letter: C
Question
Carbon resistors often come as a brown cylinder with colored bands. These colored bands can be read to determine the manufacturer's target resistance value. The first two bands (L and M) represent the number. The third band (N) represents the order of magnitude - basically how many zeros to add. The fourth band (S) represents a tolerance. A tolerance of 5% (gold band) means that most resistors will fall within 5% of the labeled value. A silver band represents 10% and no color represents 20%.
Green (5), Red (2), Red (2) with a silver band would represent a resistor with a resistance of 52e2 ohms, which is 5200 ohms or 5.2 kohms. The tolerance would be 10%.
What would be the resistance and tolerance for the following two cases?
a) Yellow, Violet, Red, Gold:
b) Red, Black, Green, nothing:
Black 0 brown 1 red 2 orange 3 yellow 4 green 5 blue 6 violet 7 gray 8 white 9Explanation / Answer
a) 47e2 4.7kohm with 5% tolernce
b) 20e5, 2Mohm with 20% tolerance