which wire is the negative?
2082570
The black and red. It's confusing. One is red one is black and red that's negative
2082571
In automotive electric red is always positive and black is always negative. Take it from an electrical engineer.
7106
The end is a pair of wires that you will need to connect to a positive and negative source.
636019
Yes A negative sign (-) will display on the meter when checking DC voltage and the meter leads are incorrectly placed on the voltage source. When the meter leads are reversed, then the negative sign will not appear.
791828
Connect the line either to positive or negative. You do not want to connect to both. You will cause a short. Once you open the circuit to one terminal or the other it will shut off the flow of electricity.
1469172
Typically the white or dash-dot wire is positive and the unmarked black one is negative. As to the plug itself, the center pin is positive and the shield is negative. Of course, it is always best to test with a volt meter but this is standard electrical wire code.
1987004
There is a power cord coming out. They are 2 wires. The only hard part is there is no documentation as to positive vs negative lead. I tested both directions and chose which worked best.
850178
It just has a spot for positive and negative so any wire will work with them I have wire from radio shack on mine
307382
Are you using a grounding rod? The negative post should be wired to a grounding rod that you drive into the ground a few feet. The positive is hooked up to your wire and doesn't need to come back to the negative post. This is designed to have the wire charged and when something comes in contact with it it and the ground (dog,cow, horse) then it gives the shock. I'm not sure what your question is or how you have it set up. Mine works great.
2070009
Connecting the negative (black) first is the safest approach. This cable does work well with a small compressor. Enjoy!
996199
You can actually buy 24gauge speaker wire and simply cut and splice both the positive and the negative ends. That wire can easily be found at Fry's Electronics.
812493
On the side of the unit, it says "7-9 Volt", and a diagram for NEGATIVE CENTER. This is important because most wall adapters are positive-center, and using the wrong one might burn out the machine (unless the circuit designers went the extra mile to protect against that, which I'm not going to try to find out).
2055949
12 volt negative ground(with red wire for +tip of cigarette lighter plug). the other end of power wire is +- 1/16 inch to fit opening of unit.
791826
There is no positive and negative. It's basically an on and off switch. It will work on ether side. I use it on my Model A Ford to cut the battery off. I put it on the negative side of battery like is "battery-switch-cable to starter and rest of car". Model As are backwards. On modern cars I would put it on the positive side. For the price it works great.
64291
There is two stray wires for positive and negative. You can connect it to batteries. Connect it to a 12 volt source i.e. inside cab lights.
117504
Positive side of the light you're controling goes to red wire, (negative side of light goes to battery negative or ground)Black wire goes to positive 12v terminal of battery.White wire goes to negative 12v battery terminal or ground.
1797267
Yes, circuits may be reversed. The 'Positive = P' sits under the 'negative' button. And my dog reacts accordingly, positive=lower button she comes, upper button = negative and she runs as 'wholly hell' is after her. Return the item against a new one.
1450772
Polarity is embossed on the ceramic substrate with traditional symbols of positive and negative. If you can't locate, use s multi meter as it is a diode and only passes current from negative to positive