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On a standard four band resistor: yellow, violet, black, and gold.

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12y ago

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What is the forward voltage across diode based on its colors?

Diodes do not have color codes as far as I know. The "turn on" voltage is usually in the ballpark of .4 - .8 volts, and is dependent on the type of diode (germanium, etc.). You may be referring to resistors. Look up in google resistor color code, and this should help you. There will be three colored lines, two are the resistance, the third is a scaling factor. For example, if the first two colors match 82, and the third matches 3, the resistor is a 82 x 1000 = 8.2k ohm resistor. There may also be a fourth color; this denotes the resistance tolerance (1, 2, 5, or 10 percent). If the tolerance is 10%, the above example may range from 8.2k + / 1 820 ohms.


Why do resistors have a color code?

Colour code used to identify resistance of the resistor


What do the coloured bands of the resistors mean?

They are a standard code with each individual colour representing a single whole number (1-10) indicating the resistance or ohm value. Additionally the gold band represents 5% "tolerance" and the resistance value is more precise. The silver banded resistors have only 10% tolerance & therefore are not as precise in ohm value. Such should be cheaper to buy than the gold ones.


What are the wire color codes for Trailer 7 blade?

There are seven color codes for a trailer 7 blade. The right turn wire is green, left turn is yellow, the ground wire is white, the tail/marker is brown, the brake is blue, the battery is red or black, and the back up is purple.


How do you read the resistance of a four-band resistor?

First band has a color representing the first significant figure. Second band has a color representing the second significant figure. By default, the numbers are arranged first.second Third band has a color representing 10 raised to the power of. Fourth band represents the average accuracy of that lot of resistors that are made in that batch, by design and process control. If it is not present, it is ±20% (?) of the marked value. * black = 0 * brown = 1 * red = 2 * orange = 3 * yellow = 4 * green = 5 * blue = 6 * violet = 7 * grey = 8 * white = 9 * silver means ±10%, or -2 in third position * gold means ±5%, or -1 in third position So red, black, orange, gold... is a 2000 (or 2.0k) ohm resistor, with a 5% accuracy. A five band resistor has an additional significant figure between bands "2" and "3" as described above. Precision resistors (1% accuracy or better) are always printed values, with "203" also being a 2.0k ohm resistor.

Related Questions

What is the color code of a 10 percent tolerance resistor whose conductance is 0.008335?

brown, red, brown, silver = 120 ohms


What is the resistor color code and how is it used to identify and select resistors?

The resistor color code use to help to identify the resistance of the resistor. There are four color in the resistor that help to identify the resistance of the resistor. The first and second color represent the numerical value of the resistor. The third color represent the multiplier. The four color represent the tolerance.


What is the color code that indicates 20 percent tolerance?

Resistors made to a 20% tolerance do not have a color in the 4th tolerance band.


What are resistor values defined by?

Resistor value is defined by the Resistance the resistor offers in Kilo ohms/ohms value given by color codes on the resistor.


What do the different colours on a resistor mean?

The color bands on a resistor indicate its resistance value. Each color corresponds to a digit, which is used to calculate the resistance value based on a specific color code chart. The tolerance of the resistor is also indicated by a separate color band.


Value of resistor Yellow violet yellow gold color code?

470K ohm at 5% tolerance


What is the resistance value and tolerance with color bands of gray red black and gold?

The resistance value for the resistor with color bands gray-red-black-gold is 82 ohms with a tolerance of +/- 5%.


What value is resistor that is colored white white white brown?

When a resistor has a 4th color band, its color is either gold or silver, so I will assume the color bands are white-white-white-gold. The resistance is 99 GΩ ± 5%.


A resistor is marked with the following color bands brown black red and gold What is the resistance of this resistor?

The color bands on a resistor represent the resistor's resistance value. In this case, the colors brown, black, red, and gold correspond to the digits 1, 0, 2, and a multiplier of 10%, respectively. Therefore, the resistance of this resistor can be calculated as 10 * 10^2 ohms, which equals 1000 ohms or 1 kiloohm.


What is the resistance of a resistor color code black orange orange?

Black is never the first band of a resistor color code, so you must be reading the stripes backwards. Orange-Orange-Black = 33 ohms.


What is the forward voltage across diode based on its colors?

Diodes do not have color codes as far as I know. The "turn on" voltage is usually in the ballpark of .4 - .8 volts, and is dependent on the type of diode (germanium, etc.). You may be referring to resistors. Look up in google resistor color code, and this should help you. There will be three colored lines, two are the resistance, the third is a scaling factor. For example, if the first two colors match 82, and the third matches 3, the resistor is a 82 x 1000 = 8.2k ohm resistor. There may also be a fourth color; this denotes the resistance tolerance (1, 2, 5, or 10 percent). If the tolerance is 10%, the above example may range from 8.2k + / 1 820 ohms.


What doe the last color band on a resistor represent?

It's the tolerance of the resistor - +/- 10% (grey), 5% (tan/orange), 2% (red), 1% (dark red/maroon), etc.