How do you calculate resistance value by color code?
Reading and Determining the Resistor Value Hold the resistor with the gold or silver band to the right and read the color codes from the left to the right. Select the color codes from the bands on the resistor. Read the colors from left to right. The resistance value based on the color code provided is now displayed.
What do the color codes on resistors mean?
The colour code used to denote the tolerance rating of a resistor is given as: Brown = 1%, Red = 2%, Gold = 5%, Silver = 10 % If resistor has no fourth tolerance band then the default tolerance would be at 20%.
How do you identify a resistors color?
Read the color bands from left to right.
- Black: 0 significant digit, multiplier of 1.
- Brown: 1 significant digit, multiplier of 10.
- Red: 2 significant digit, multiplier of 100.
- Orange: 3 significant digit, multiplier of 1,000 (kilo)
- Yellow: 4 significant digit, multiplier of 10,000 (10 kilo)
How do you read a color code?
Hex color codes start with a pound sign or hashtag (#) and are followed by six letters and/or numbers. The first two letters/numbers refer to red, the next two refer to green, and the last two refer to blue. The color values are defined in values between 00 and FF (instead of from 0 to 255 in RGB).
How do you calculate the value of a resistor?
Calculating. To calculate the resistance value, you need to group the values of the significant digits bands — i.e., the values of the first two or three bands from the left, depending on the total number of bands. Then you need to multiply that value by the multiplier to get the resistance value of the resistor.
How do you calculate resistors?
This is shown below. To calculate the total overall resistance of a number of resistors connected in this way you add up the individual resistances. This is done using the following formula: Rtotal = R1 + R2 +R3 and so on. Example: To calculate the total resistance for these three resistors in series.
What color is a 2.2 K ohm resistor?
The color code of 2.2 k resistor is Red-Red-Red-Gold. From the above resistor color code table, you will find that Red stands for 2 and Red for 2. The third band is Red, so it means a multiplier value of 2 (100).
How do I know which end of the resistor to start reading from?
Always read resistors from left to right. – Resistors never start with a metallic band on the left. If you have a resistor with a gold or silver band on one end, you have a 5% or 10% tolerance resistor. Position the resistor with this band on the right side and again read your resistor from left to right.
What does K mean in ohms?
One kiloohm is equal to 1,000 ohms, which is the resistance between two points of a conductor with one ampere of current at one volt. The kiloohm is a multiple of the ohm, which is the SI derived unit for electrical resistance. In the metric system, “kilo” is the prefix for 103.
What color is a 10k ohm resistor?
A 10k ohm resistor has 4 color bands: brown, black, orange, and gold for 5% tolerance, respectively.