What is resistor color coding?

Resistor Color Coding uses colored bands to quickly identify a resistors resistive value and its percentage of tolerance with the physical size of the resistor indicating its wattage rating. The colors brown, red, green, blue, and violet are used as tolerance codes on 5-band resistors only.

What is color coding?

Color coding in the workplace mainly concerns the safety and disaster preparedness of the workforce. The concept consists of assigning different colors to indicate various risks, dangers, and safety hazards either up-close or from a distance (even when vision is compromised and reading safety signs could be difficult).

What is the resistance of a 4 band resistor?

4 band resistor By using the color code chart, one finds that green stands for 5 and blue for 6. The third band is the multiplier, with red representing a multiplier value of 2 (102). Therefore, the value of this resistor is 56 · 102 = 56 · 100 = 5600 Ω. The gold band means that the resistor has a tolerance of 5\%.

How is color code resistance calculated?

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.

How do you calculate resistance color code?

6 Band Resistor Color Code The formula for the three-band resistor color code is – 1st digit. 2nd digit. third digit x Multiplier = 1.0. 3 X100 = 10.3-kilo ohm ±5\% 100 ppm/oc.

How do you determine the resistance of a resistor by color coding?

By matching the colour of the first band with its associated number in the digit column of the colour chart below the first digit is identified and this represents the first digit of the resistance value.

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 find the resistance value of a color code?

How do you calculate resistance value?

Divide the voltage by the current to get your resistance. This formula, known as Ohm’s Law, is a fundamental law of electronics and states that the voltage is equal to the resistance multiplied by the current. For example, a 120 volt circuit that generates 10 amperes of current would have a resistance of 12 ohms.

What do the band colours for resistor color code mean?

The band colours for resistor colour code in the order: The tolerance values represent by how much the resistance can vary from its mean value in terms of percentage. A gold band represents the lowest variation, so be sure to buy these at the electronics store. The value of the given resistance is: 22 Ω ± 5\% .

What is the difference between a 4-band and 5-band resistor?

In a four-band resistor, which is the most common, the first two bands also represent the first two significant digits. The third band represents the multiplier. The fourth band represents the tolerance. In a five-band resistor, the first three bands represent the first three significant digits. The fourth band represents the multiplier.

What is the resistance value of the resistor given the resistor?

The third band is a multiplier band. Hence, the colour red represents a multiplier factor of 10 2. The last band represents the tolerance level and the tolerance level of the resistor is ±5\%. Hence, the resistance value of the given resistor is 2500 ± 5\% Ω or 2.5 kΩ.

How do you read a resistor tolerance band?

To read them, hold the resistor such that the tolerance band is on your right. The tolerance band is usually gold or silver in colour and is placed a little further away from the other bands. Starting from your left, note down all the colours of the bands and write them down in sequence.