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Which wire is negative and which is positive if there is a red and white wire?
Wiki User
∙ 11y ago
Commonly the red should be positive but not always. Use a volt meter to find out for sure. Really need more information as to what this wire is for and where it is located to give a good answer.
Wiki User
∙ 11y ago
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Is there a difference between black wire and red wire?
Yes, the red wire is a positive wire (+) and the black wire is a negative wire (-) :D
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Red to positive, black to negative
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always think of any supply system so : RED = MOST POSITIVE BLACK = MOST NEGATIVE in a telecom system the -48V supply is refferenced to ground and earth, so the supply wire is NEGATIVE, this means a DC supply most positive signal the RED wire, go to EARTH = ZERO, the BLACK wire is the MOST negative, so in this case it is -48V
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What is positive wire?
Positive wire is red, at least on automobile batteries.
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Black is negative, red is positive - if you've got something where your options are color and white, the white is your negative.
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Left Front Speaker Positive Wire (+): White/Red Left Front Speaker Negative Wire (-): Brown Right Front Speaker Positive Wire (+): Green Right Front Speaker Negative Wire (-): White/Orange
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Positive is normally red or white with a red stripe. Negative is usually green or on rare occasions black. A multimeter will verify this.
Does the red wire go on the plus sign on a battery or the minus?
The red wire is Positive, (+) and the Black wire is Negative. (-)
How do you tell a positive wire from negative wire with colors?
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Red wire=positive Black wire=negative
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Which is positive and which is negative out of red wire blue wire white wire and black wire which go to positive?
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.
Is white wire positive?
Generally, white wires are positive. Red is usually negative. However, the construction of the electrical device could be different. It is best to check the instructions.
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