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In a DC circuit it is positive.

In a 220v ac circuit it's one of the two positive (hot) lines.

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14y ago
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13y ago

most likely positive. that's wat it is on a jump-start cable.

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Q: Is a red wire negative or positive?
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Is the copper wire positive or negative?

copper is positive


How can you tell which is positive and which is negative on a speaker hookup?

Depending on colours of course black is usually negative and the other colour (generally red but depends) is positive. Get a D-cell Battery. Now get two pieces of speaker wire. hold one wire on the positive terminal of the battery and hold the other on the negative side of the battery. touch the wires to the positive and negative posts on the speaker. if the cone moves out ward the positive and negative are correct if it moves inward then the positive and negative are reversed (out of phase.) this simple test will allow you to see which terminal is which. Get a D-cell Battery. Now get two pieces of speaker wire. Hold one wire on the positive terminal of the battery and hold the other on the negative side of the battery. Touch the wires to the positive and negative posts on the speaker. If the cone moves outward the positive and negative are correct if it moves inward then the positive and negative are reversed (out of phase.) this simple test will allow you to see which terminal is which.


How do you know positive and negative terminals?

Look for a + by the positive terminal and a - by the negative terminal, or red for positive, black for negative. Some batteries have the positive terminal protruding and the negative terminal flat. Or you can get a meter that will tell you which is which,


Is red speaker wire positive?

Generally, yes.


What is a negative - positive?

Negative * positive = negative Positive * positive = positive Negative * negative = positive

Related questions

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. (-)


What are the positive and negative speaker wire colors on a 2008 pathfinder?

The positive speaker wire is red while the negative speaker wire is black on a 2008 pathfinder.


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


Which wire is positive or negative in hot power lithium polymer battery?

Red is positive, Black is the negative


How do you tell a positive wire from a negative wire on a car?

On the car battery, the positive wire is red and the negative wire is black. If the body of the car is metal or conducts electricity, then the body of the car serves as the negative wire. The metal in the engine serves as the negative wire.


What are the Rear speaker wire colors on a 2005 Mitsubishi?

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


Standard automotive wire colors?

Black for negative and red for positive.


Which wire colors for 12v battery?

Red to positive, black to negative


How do you know which wire is positive and which wire is negative in the stereo of the car rear specifically?

Positive is normally red or white with a red stripe. Negative is usually green or on rare occasions black. A multimeter will verify this.


What polarities red wires and black wires indicates in case of dc measurement?

In DC measurements, the red wire typically indicates the positive polarity (+) while the black wire indicates the negative polarity (-). It's important to connect the red wire to the positive terminal and the black wire to the negative terminal when taking measurements to ensure accuracy and avoid damaging the equipment.


What color is the positive and negative wire for 2005 Toyota Tacoma tail light?

The positive wire for the 2005 Toyota Tacoma tail light is red with white stripes. The negative wire is white with black stripes.


How do you tell a positive wire from negative wire with colors?

In a DC circuit Red is positive and Black is negative. In AC systems White is neutral and Ground is green or green-yellow stripe.