Q:I recently bought a set of DT Moto emergency lights for my pickup and after installing them i found when i went to wire them to my battery the wire was too short. I didn't install the grille lights just the visor. Could i cut wires from the grille set and wire them to extend the visor light wire?

I'm looking online to find out what DT Moto lights are. Ok, I see what they are. I didn't know the brand name. LED lights in general are not high current, so they probably use lamp cord. I want to explain something to you about polarity. Electronic circuits are sensitive to the polarity of the DC electricity. The positive (+) and the negative (-) connections must be observed. So many people have absolutely no clue about this. There are just two wires. But if you extend them, you have a 50-50 chance of wiring correctly or incorrectly. There is only one allowable way. If wrong, it WON'T work, and probably will blow up the circuitry. So connection to battery or cigarette lighter plug is extremely important not to reverse the polarity. If just the LED lights got reversed, they wouldn't light, but they wouldn't be injured. Just reverse the wiring. But to the 12 volt source, polarity can't be wrong. Not for an instant. If you look closely at the insulation, you will see that one wire has smooth insulation, and one wire either has milti-ribbed insulation, or a single rib down the side. If you extend wiring, make sure to connect smooth to smooth and ribbed to ribbed. Wires should be soldered with electronic solder and the joints covered with heat shrink tubing. No crimped barrel connectors, or twisted bare wires with tape, or house wiring wire nuts. These methods all beg for failure. I don't know about robbing wire from one place and connecting to another. Is the one wire actually too long? You'll never need it? I guess you could take it. But me personally, I'd go get some wire from a lamp store. Match the wire conductor gauge (size), not the insulation size. Most lamp cord is 18 gauge. Some is 16 gauge. You can get 14 gauge or even 12 gauge. Thicker is a smaller number. Places that install car audio systems often have/sell thicker lamp cord. Have I told you enough?

Q:I have a 98 oldsmobile intrigue. Stock radio was taken out a while ago so all there is are wire hanging out. I don't know what I need, a wire connector or wire harness. Honestly don't know what's what. Also need to know how to use the wire connector/harness.and what goes to what

those wires you see are factory wiring for the factory radio. if your putting a aftermarket radio in it go to radio shack and ask for plug-ins for your car.with those plug-in all you do is hook the wiring from your aftermarket radio to them then plug them into the factory harness.

Q:how do i wire my sensor to my light

Normally it is black wire to black wire, white to white and ground (copper) to ground.

Q:What type of wire do i need to install a normal inside wall outlet? Do i have to use solid copper wire?

Buy AWG # 14X2 cable inside includes one more bare copper wire for grounding. Solid single conductor is the common product.

Q:Why is the current limiting circuit used to measure the resistance of wire by voltammetry?

Because the resistance of wire is very small, almost zero. According to the current, equal to the voltage divided by the resistor, it is known that the resistance is almost an hour and the current is close to infinity. This will burn out the power supply, so the current limiting method must be used

Q:In the ceiling is one black, one white and a ground. How do I connect a new ceiling fan to these two wires? The ceiling fan has black wire, white wire, a blue wire and a green wire. We don't have green in the ceiling nor do we have a ground...knob and tube perhaps? So, can we connect this fan or not?Thanks!

White to white, black and blue to black, green to box.

Q:Would crepe paper stick on chicken wire?

Crepe paper needs an adhesive to make it stick to a surface, such as white glue. However, it gets messy once dampened, as the colors may bleed. Instead, I would consider working with paper mache or plaster gauzing strips, which would provide a strong skin over the chicken wire. Both can be primed with gesso then decorated with acrylic paints. If this is a sculptural piece you want to keep, we would also suggest varnishing it for protection.

Q:When wiring an aftermarket car stereo, do you always match color to like color? Also do you have to use every wire from the wire harness?

Assuming the head unit follows the standard color code (there are some cheap Chinese import units that don't) then you should match the head unit wire colors to the harness wire colors. There are a few extra rules, though: -If the harness has a blue wire, and the head unit only has blue/white (no blue), then the blue harness wire should be connected to the blue/white head unit wire. If the harness has a blue/white AND a blue wire, then both of them should be connected to the head unit's blue/white wire. Similarly, if the head unit has only a blue wire and no blue/white, then it should be connected to the blue and the blue/white wires in the harness. -Orange and orange/white can be treated as interchangeable; ie, an orange/white head unit wire can be connected to an orange harness wire, and vice-versa. (If the harness has both an orange and orange/white, though, don't combine them--just use one or the other with the head unit). -Some harnesses have a black/white wire; this can usually be combined with the black ground wire. -Brown and orange/black wires in harnesses should be taped off individually and not connected to anything. -Some harnesses don't have a black ground wire. In this case, the black wire from the head unit will need to be grounded somewhere else. There will usually be wires left over. Make sure each one is insulated so it can't cause a short or contact another wire.

Q:electrical wire prices

It follows the copper market. During high economic growth periods, copper (for wiring) oil for fuel are both simultaneously in high demand.

Q:HiI want to cover a large section of a wall at home with wire. There is a plug socket (electrical outlet) in the wall. How can I ensure that I do not drill into electrical wiring within the wall? Is there some way to scan a wall to locate the wires?Thanks.

If the house is newer construction, it should have nail guards over the wire to prevent you from nailing into the wires. But that's should have guards. There are devices that you can use to sniff out wires inside the wall. Prices vary. Depending on how long the nails/ staples are that you are using, you should be ok just putting them in where ever, most of the wiring is pulled through the center of the studs, that gives you a nearly an inch on either side of where the wire is pulled through, if its in a 2X4 wall.