The values and colours of the bands are as follows
(0) Black
(1) Brown
(2) Red
(3) Orange
(4) Yellow
(5) Green
(6) Blue
(7) Violet
(8) Grey
(9) White
The first two bands are the value, the third is the multiplier (times ten). So as an example if the first band is Red, the second is Green, and the third is Orange, the value would be 25000 or 25k Ohms.
Black is never the first band of a resistor color code, so you must be reading the stripes backwards. Orange-Orange-Black = 33 ohms.
obsidian rocks are red and black also sometimes orange
it is a yellowish/orange colour but when iodine is present, than it will turn an dark-blue/black colour
Triplumbic Tetroxide = Lead(II,IV) Oxide =PbO.PbO2 = Pb3O4 = Reddish-Orange Solid
A rainbow is made up of seven colors: red, orange, yellow, green, blue, indigo, and violet. These colors are created by the dispersion of sunlight through water droplets in the atmosphere, resulting in the visible spectrum of light.
Black is never the first band of a resistor color code, so you must be reading the stripes backwards. Orange-Orange-Black = 33 ohms.
A 10K resistor has the coloured stripes in the following order.. Brown, Black, Orange, Gold
Brown (1) - Black (0) - Orange (1000)
Orange, Black Black should give you 30R
Brown (1) - black (0) - orange (4 more 0's) - 10,000 ohms.
The first three bands on a resistor tell you what its resistance is. The first band is the first digit, the second band is the second digit, and the third band is the number of zeros to add. Use the resistor color code to convert... 0 Black 1 Brown 2 Red 3 Orange 4 Yellow 5 Green 6 Blue 7 Violet 8 Grey 9 White As an example, a 27000 ohm resistor would be Red - Violet - Orange. If the third band is Silver, the multiplier is 0.1 and, if the third band is Gold, the multiplier is 0.01. For example, a 0.39 ohm resistor would be Orange - Gray - Gold.
The resistance value for the resistor with color bands gray-red-black-gold is 82 ohms with a tolerance of +/- 5%.
Green, Black, Orange, (gold / silver) Green = 5 Black = 0 Orange = x10^3 50x10^3 = 50,000 or 50k Ohm
Resistors have standard colors for identification of the resistance value. In order, the colors are: black, brown, red, orange, yellow, green, blue, violet, gray, and white. Reading resistors is a very simple procedure if you use the chart and formula below. Hold the resistor with the gold or silver band to the right and read the resistor from the left to the right. http://www.westfloridacomponents.com/reschart.html
The color pattern of the primary bands on a resistor are black, brown, red, orange, yellow, green, blue, violet, grey, white - representing 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.
Mixing black and orange will result in a darker shade of orange, leaning towards a burnt orange or rust color. The intensity of the black will determine how dark the final color appears.
This question cannot be answered because you did not specify the color of the third band.