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.
How do you determine the color of a resistor band?
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 tell which is the first band on a resistor?
Calculating Resistor Color Codes
The first band is the brown band closest to the edge. We look up our resistor color code chart, and find that brown has the 1st significant value of 1 and black has the second significant value of 0. The third band is brown, which means that the multiplier is 1.
How do you decode a resistor?
Decoding the nominal value of a resistor
Decide which band is the first band. Look up the color of the first band in the column labeled “1st digit” and find the number associated with that color. Look up the color of the second band in the column labeled “2nd digit” and find the number associated with that color.
What is the difference between a 4 band resistor and a 5 band resistor?
Resistors with high precision have an extra band to indicate a third significant digit. Therefore, the first three bands indicate the significant digits, the fourth band is the multiplication factor, and the fifth band represents the tolerance.
What do the stripes on resistors mean?
Resistor values are marked with small colored stripes. The first two stripes represent numeric values and the third stripe is a multiplier. The fourth stripe gives you the resistor’s tolerance — that is, it tells you how close to the indicated value you can expect the resistance to actually be.
How do I identify a 5 band resistor?
If the colors on a 5 band resistor is in this order: brown, green, red, blue and violet (as shown in figure). The values of color bands will be like this: Brown = 1, Green = 5, Red = 2, blue = 106, Violet = 0.10%.
Why are resistors color coded?
Components and wires are coded with colors to identify their value and function. 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.
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).
What are color codes?
A color hex code is a hexadecimal way to represent a color in RGB format by combining three values – the amounts of red, green and blue in a particular shade of color. These color hex codes have been an integral part of HTML for web design, and remain a key way of representing color formats digitally.
What is 10K ohm resistor?
What does 10K ohm mean? Imagine you have a voltage source at 6V. If you had a 10K Ohm resistor, you would have 6/10,000 amperes of current flowing in the circuit. What does a 10K ohm resistor look like? A 10k ohm resistor has 4 color bands: brown, black, orange, and gold for 5% tolerance, respectively.
What color is a 10K ohm resistor?
10k resistor color code of 4 band resistor is brown – black – orange – [Tolerance]. The color code of the 10k ohm resistor with 5 band is brown – black – black – red – [Tolerance].
What color is a 470 ohm resistor?
470 Ohm Resistor Color Code: Yellow, Violet, Brown, Golden. Resistance: 470 Ohm, Power Rating: 2 Watts, Approximate Maximum Current: 65.23mA .
What is the third band on a resistor used for?
The third band is called a Multiplier, this means the number of zeros you add after the first two digits to get the Ohm value (example: brown = 0). So one zero is added after the first two numbers. Therefore 220 ohms is the resistance value of the resistor.
Does it matter which direction a resistor is facing?
No the resistors are bidirectional and can therefore be used in both directions. Do not go wrong with the colored lines, it’s just to say the approximate resistance. The resistors are purely passive components and have a linear response when the voltage is applied to one or the other polarity.