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FAQ

I have a new light fixture I am trying to install. The electrical box has two sets of black and white wires coming in. Both of the black wires are connected together while the white wires from either set were used to connect the old fixture. How should I wire in the new fixture. The switch for this light has only one set of black and white wires connected to the light switch.

Identify the wiring so you have the power feed and the switch leg and then put some black tape on the white wire going to the switch. This should be connected to the black power feed and then the white from the power feed is connected to the white of the fixture and the black from the switch leg is connected to the black of the fixture.

Hello,I got a ventilation fan for the bathroom. The fan has 2 wires and there are 2 wires sticking out of the wall.How do I know which wire connects to which wire?What would happen if I connect the wrong wires?

Usually its a white/red and a black wire that stick out of the walls/ceelings. All you need to do is to match the colors together, red/white on red/white and black on black. White is usually the live wire and black is the return wire. If you plug them the other way around you can short out your lamp and pop your breakers or burn a fuse. just make sure the wire is not live so unclip your braker or unscrew your fuse for that circuit. If all your wires are black you will need a electric meter to know which one is which. Also sometimes black wires have a white line on them to differenciate from full black wires! hope it helps

can a positive wire connect a negative and positive terminal together, or can a negative wire connect a positive and negative terminal together? This is regard to speakers in a guitar speaker cabinet. using rca speaker wire which is two wires that can be separated. One is positive and the other negative. If you are only using one half of the wire to wire two speakers in series does it matter if it is the positive(the side with the white stripe) or negative one since wiring in series is positive terminal to negative terminal.

Wire is wire. There is no positive wire and no negative wire. The wires are colour coded so you can keep track of what connects to what. You can use orange and green wires if you want; just keep track of what you are connecting.

A wire has resistance 56.8 ohms. If another wire consists of the same material but has twice the length and half the diameter of the first, what is the resistance of the 2nd wire?

The resistance of a wire is given by R = rho*L/A, L is length, A is cross-sectional area, and rho is resistivity, which is dependent on material. It will be constant here as we are dealing with the same material. Let's say that the radius of the first wire is r1. R1 = rho*L1/A1 = rho*L1/(pi*r1^2) rho = R1*A1/L1 = R1*pi*r1^2/L1 For the second wire, R2 = rho*L2/A2 = L2/(pi*r2^2) * R1*Pi*r1^2/L1 L2 is twice L1, L2=2*L1. The diameter is half the first, which means that the radius of half the first, so r2 = r1/2. R2 = 2*L1/(pi*(r1/2)^2) * R1*pi*r1^2/L1 = 8*R1 = 454 ohms.

Where, online, can I find a (color!) wiring diagram for my 1985 Yamaha Virago 700?My motorcycle starter solenoid isn't throwing because the little wire isn't getting connected to negative -- it might be a connection to the handlebar starter switch, or the quot;run/offswitch, or the side stand sensor, or the neutral sensor, or something else! I need to see a diagram so I can tell what that something else is, and to see what color the wires from all those other sensors are.

Wiring okorder

Can you wire an extention cord to low voltage wireing? to like malabu lights

malibu lights can be wired to an extension cord wire if you do not use wire that is less than 14 gauge .... -== you really are better offr to use the same wire that came with the light sets as it is designed to be weather-proof .... the wattage of the

What are the basic characteristics of wire resistance strain gages?

Resistors (Resistor) are commonly referred to as resistors in everyday life. It is a current limiting element. After the resistance is connected to the circuit, the resistance value of the resistor is fixed, usually two pins, which can limit the current size of the branch through it.

I keep thinking that the wire would cut into the bark when the bonsai is growing.I want to wire it now because it is easily manipulative, but I don't want to prevent trunk growth

Wire it, let it grow a bit. Then, as necessary, undo the wire, then rewire it to fit the new size. An alternative is to append weights, or tie strings to other objects or parts of the plant instead of wiring a whole branch.