Q:For my science project, need about 3 feet of copper wire...approx how much will that cost me? I want the wires to be pretty thin :)

no. romex, household wiring, can be as little as $0.57/ft and i bett you don't really need 3 wire, 8 gauge romex for your project...

Q:im assuming red to red and black to black? but then what about the extra green and white wires in the iphone cable? where do they go?

Those are the USB wires. For a charger, they need connected through voltage setting resistors.

Q:Can anyone tell me how to connect a older model ceiling fan in a new house... the fan itself has one white, one black , one red, one bare wire and a green wire. The wiring in the ceiling has one white, one black, one green and one copper wire. Thanks!

If you look closely you will probably find the green wire in the ceiling is only attached to the junction box, connect all green and bare wires together, whites together and blacks and reds together, I'm sorry to tell you that you do not have enough wires present to control the fan and light separately, which is why they have chains, and you will have to use them. It sounds like the installation you have may allow the use of X10 modules for independent switching if it is needed. Be aware, your ceiling j-box may not be UL an NEC approved for fan installation. Ground wires are allowed to be either green or bare, and fixture ground wires are not required by ul to be copper, and all grounds should be attached together.

Q:There are 3 wires where the old floodlight used to be and only 2 wires attached to the floodlight I want to install. How can I tell which wires connect to which... and what is the third wire?

Usually there is a black wire (hot), a white wire (neutral), and a green or bare wire (ground)... in an ideal world:) If you need to find the hot wire, you can get a non contact voltage finder from lowes or the hardware store. This device will tell you where the AC voltage source is coming from without you even touching the wire. You will need to remove the old light and wire nut the wires. Then turn the electricity back on, use the detector to find out which wire is hot. Connect the black wire on the lamp to the hot wire.

Q:So ground wire, start anywhere i suppose?Where does ground wire hook up too?why you need to ground out your system?Only need 1 ground wire?

Ground wires complete the circuit and need to be connected to metal on the cars chassis. keep the connections as short as possible. Clean all the paint off the area , use a wire brush ect to remove all paint to bare metal you can use existing bolts/ screws or install your own , use the same gauge ground wire as you use for the power wire

Q:My home is wired for the thermostats with two wires (red and white). I have acquired a new thermostat that requires a Red, White, and Common wire. Using the white wire in that position will power the unit up but it won't trigger the heat. Is there something that can be put in line that will allow this thermostat to work without rewiring the house?

Connect a new piece of 3 wire to the existing 2 wire and pull it through the wall by pulling the 2 wire. Of course if it gets stuck you will need to measure how far you pulled to know where to cut a hole in the wall. Cutting a hole in the wall if needed, isn't a big deal you just put the piece back, screw or nail it down (cut so you have studs on both sides to reattach it later) tape and plaster and paint.

Q:hi i have 2000 prizm the wires coming out of car doesnt match the colours of stereo wires does and body knows the wiring coding for car to sony cd player thanks

2000 Geo Prizm

Q:I'm replacing the ground wire in a chandelier because it has been cut by the previous owner when it was removed from the ceiling. Overall it is pretty simple and I have everything diagramed. When I went to Radio Shack and bought the replacement wire they gave me 18 gauge solid insulated hookup wire. It looks totally different. The ground wire is a braided copper wire (7 strands). Should I go back and take my copper wire with me and get copper or is what I have just as good? An electrician will do the installation of the chandelier into the ceiling.

Ground wire is common convention at electrical boxes. Ground wire from point to point in any circuit is part of the wiring cable used. On a ceiling light, there is little danger of electrical shock if there is no ground wire from the fixture to the metal box. However, your replacement wire will work just fine.

Q:There is a circuit with a battery connected to two wires in parallel. Both wires are made of the same material and are of the same length, but the diameter of wire A is twice the diameter of wire B. Answer true or false for the following questionsThe curent through the battery is five times larger than the current through wire B.The power dissipated in wire A is 16 times the power dissipated in wire B.The voltage drop across wire B is larger than the voltage drop across wire A.The resistance of wire B is four times as large as the resistance of wire A.The resistance of wire B is twice as large as the resistance of wire A.

the diameter of wire A is twice the diameter of wire B This means the cross-sectional area of A is 4 times that of B, which means the resistance of A is 1/4 that of B. To put some numbers on it, if B is 4 ohms, A is 1 ohm, total R is 0.8 ohms. Which means that if you have 1 amp of current flowing, you have 0.8 volts drop across the two wires, and 0.8 amps flowing through A and 0.2 amps flowing through B. Power in A is 0.8*0.8 = 0.64W, power in B is 0.8*0.2 = 0.16W, total power is 0.8*1 = 0.8 watts 1. true, see above 2. false, 4 times 3. false, they have the same voltage drop, they are in parallel 4. true 5. false, see #4 .

Q:I've been meaning to find floral wire for a DIY project I'm going to attempt. Does anyone know where to buy floral wire? I'm not sure if Michael's sells it. Please let me know from personal experiences.

Where To Buy Floral Wire