When working with DC (direct current) voltage, IN GENERAL, red is positive and black is negative. But the reality is, a manufacturer may select different colored wires to represent different things, and it is entirely up to the manufacturer to make those decisions.
But since this question is under the heading, "Home Electricity", you may have asked the wrong question, since home wiring is AC (alternating current), and there is no such thing as a positive or negative wire.
A positive Lugol's solution test will result in a dark blue or black coloration, indicating the presence of starch.
Glaciers can appear to be white, blue, or even black. They can look white when covered in snow, blue due to ice compression, or black from debris and sediment.
Yes, the peak of their black body spectrum is in the UV band but to our eyes the color looks blue or blue white depending on how far into the UV band the black body peak is.
Theoretically, a black hole can destroy anything.
You would get blue Andalusian offspring when you cross two blue Andalusian chickens. This is due to the dominant gene for blue feathering in the blue Andalusian breed.
Yellow: 12v memory Red: 12v ignition (switched) Orange: Dash Light Black: Radio Chassis Ground Blue: Power Antennae White: Left Front positive White/Black Stripe: Left Front Negative Green: LR positive Green/Black Stripe: LR negative Grey: RF positive Grey/Black Stripe: RF negative Violet: RR positive Violet/Black Stripe: RR negative
1 White Left Front Positive 2 Green Left Rear Positive 3 Violet Right Rear Positive 4 Grey Right Front Positive 5 Blue/White Amplifier Remote 6 Blue Antenna Remote 7 Red Accessory 12 Volts 8 Black Ground 9 White/Black Left Front Negative 10 Green/Black Left Rear Negative 11 Violet/Black Right Rear Negative 12 Grey/Black Right Front Negative 13 Sky Blue Telephone Mute 14 Orange/White Illumination 15 Not Used Not Used 16 Yellow Constant 12 Volts
All four wires in a USB cord stand for different things depending on the type. The standard has green (data negative), white (data positive), black (negative), and red (positive) cord strands. There is another that has orange (5 volts), blue (data negative), green (data positive), and white (ground) cord strands.
Yellow= Constant +12volt Red= Switched +12volt Black= -12volt or ground Blue= remote Blue/White= power antenna Pink or Orange= wire color depends on brand but is the dimmer for lights.
If it is a power pack that gives jump starts it would be the red, yellow or blue the positive would be white or black. If it is a power pack that gives jump starts it would be the red, yellow or blue the positive would be white or black.
The left rear speaker wire positive is -Yellow/Blue negative is - Black/Blue The right rear speaker wire positive is - Yellow/Red negative is - Gray/Red
Black (or blue) and red would be the conventional colours.
Blue, black, and white.
BLACK = Negative (-) Earth RED = 12V Power via Ingition YELLOW = 12V Power direct from battery BLUE = Antenna REM BLUE/WHITE = Amp REM WHITE = Front left speaker Positive (+) WHITE/BLACK = Front left speaker Negative (-) GREY = Front right speaker Positive (+) GREY/BLACK = Front right speaker Negative (-) GREEN = Back left speaker Positive (+) GREEN/BLACK = Back left speaker Negative (-) PURPLE = Back right speaker Positive (+) PURPLE/BLACK = Back right speaker Negative (-) Hope this helps Snowy
Dark blue is positive and light blue negative on right side and brown positive and yellow negative on the left.
Blue jays are blue, black, white, and grey. The jays you might be talking about are black, white, grey, brown, and blue.
red white and blue