Resistors

Resistors and their color code

A resistor is a device having a designed resistance to the passage of an electric current. These resistors have different values, which means they resist a certain amount of current. The code for how much these resist is represented by colors. the resistors could have 3, 4, or 5 bands on them. The bands could be a different color, or the same color as the next one. The first 3 bands represent a number based on what color they are. The colors and the numbers are as follows: Black-0, Brown-1, Red-2, Orange-3, Yellow-4, Green-5, Blue-6, Violet-7, Grey-8, and White-9. The first band is the number that goes into the hundreds place, the second band goes into the tens place, and the number of the third band goes into the ones place. If the fourth band is any color from Black through Violet, or Gold or Silver,  there is a certain multiplier that the number from the first 3 bands gets multiplied by based on that color. The multiplier goes as follows: Black-1, Brown-10, Red-100, Orange-1K, Yellow-10K, Green-100K, Blue-1M, Violet 10M, Gold-0.1, Silver-0.01. The fifth band is the tolerance, or the amount it can vary. This goes as follows: Brown-±1%, Red-±2%, Green-±0.5%, Blue-±0.25%, Violet-±0.10%, Grey-±0.05%, Gold-±5%, Silver-±10%. For a diagram and a conversion option, Click Here.
One of the more important things to remember when dealing with resistors is the capacity that each can handle. If too much current is passing through a resistor, the result would be one big spark and one fried resistor.