Q:How are wired differ from wireless doorbells,next how are they installed and finally the cost of them?

just remember that while wireless may cost less, you have to have a wire from the outside button to the door bell itself and then you still have to have a way to power it. i have the wireless, it's idiot proof. a couple of batteries and your off and running. standard batteries like D's and maybe AA's good luck to ya. you can get a good variety at home depot or lowe's

Q:I had recently closed up an outlet by taking the four wires and capping them off. Only to find out the two of the wires were for the ceiling fan power. I have a black and a white wire newer travelers to the ceiling fan, and two old cloth wires which look black. I do have an electrical tester and just want power for the fan, I will cover up the outlet. What wires go where ?

Wire nut the old hot wire to the black and the old neutral to the white. Connect the grounds together also. Find which is the old hot with your tester. Not with your finger. Good grief.

Q:How can it be possible to create a high voltage and have a small gauge wire? Example: 3gj or 3000mw in a small wire (just an example)

The limit on the size of current carrying conductor is the heat produced due to power losses which leads to failure of the conductor, the power losses depends mainly on the square of the current (P=I^2R) so in power transmission voltage is being stepped-up to high values to decrease current and, in turn, the conductor size is reduced. Theoretically we could step-up the voltage to extremely high values and thus we could have a very thin wire to carry the small current because P=VI so at constant power as voltage V increases the current I decreases. But there are also limits for stepping up voltage as the insulation is directly affected by the voltage. In case of insultaed cables, the insulating material (PVC or XLPE) will fail if the voltage reaches its Break-down Voltage. In case of overhead transmission lines (OHTLs) the conductors are insulated by air between phases and the suspended disk insulators each has their own breakdown voltages. It should be noted that safety regulations determine a safe distance of 1 cm per Kv that you should keep from high voltage conductor. This means that for a consductors carries voltage of 500kv you should allow a distance of 5 meters away from it for your safety as its magnetic effect is not exlusive on its surface but for a distance around it proportional with the voltage.

Q:I have noticed that a room in my house is improperly grounded, and it needs to be redone. We do know that most of the wiring is made with a single core, copper wire. Would there be a hazard with using a multi core (speaker) wire for the grounding, or should we do the wiring with a single core wire.

Because it's stiffer. It's also a better conductor. Stranded wire would usually have to be in conduit. I would not use speaker wire anywhere in my home for grounding. It's against the electrical code in every state. Do it right the first time.

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

Sliding rheostat, voltage sharing method and current limiting method can adjust the load current (voltage), but under the same conditions, the adjustment effect is different, the actual application should be based on the appropriate choice of appropriate methods.

Q:In a telephone splice case, do you have to strip the 2 wires you want to splice, and put them together, or does each wire that you want to connect attach to terminals in the case? I am talking about the black cases on a utility pole, that the residential phone wiring connects to.

A telephone employee splicer does not need to strip the wires, they use connectors that pierce the insulation of the wire and make a connection that way. Normally that work is done to join two cables together. The more of the wire that is stripped, there is an increased possibility of water shorting out the two wires, and that is what will cause noisy or defective lines. If you are connecting a line to a house, inside the casing are terminal connections and you would use a connector that covers the wire that goes through the case and a single wire that will bridge onto or splice onto that connection. Again you minimize the amount of wire that is bared to minimize the possibility of shorting of the wires. See the link below for connectors. You are not allowed to climb a utility pole, or attach anything to a utility pole. If you are going into any equipment and you cause damage, you may be responsible to pay for any problems that you cause.

Q:hey could anyone tell me from the stock am radio in my nissan 720 what wires are the constant (memory) power and the accessory (ignition) wire so i can attach these to my new radio

there is no reason to cut any wiring to install any aftermarket head unit.go to wall mart to the car audio area and give them the yr make and model of your ride and they will sell you the right plug in for your type car.this wires to your new head units wiring harness and plugs into the plugs you took your factory radio out of.they call it plug and play and it comes with a wiring diagram for your type car so follow it. its color coded. if you did cut off the plugs your best bet is to put them back.this part is about 9 dollars.

Q:Am I able to do this? The wire burn the clay?

If you are referring to using a metal armature inside Sculpty, then No it will not burn the clay. You do need to follow the baking instructions though. It will bake just fine and you will be surprised how strong the sculpture is after baking.

Q:Hi,I'm trying to connect a Panasonic CQ RDP200-LEN car radio. Normally,there is red and yellow wire for ignition and constant,and a black wire for ground. However,this unit has 2 yellow wires,2 black wires and a red. Where do these wires go? thanks

Honest answer is to take it to a audio specialist. finding and wiring a stereo from scratch (termed hardwiring) is a hard job even for the most advanced audio specialist. This is speaking from experience. Most wires are not colour coded and you will need a amp meter to measure the current, voltage, continuity and resistance in order to find out what wire does what. One wrong wire could mean new speakers or in the worst case set fire to your car. I've have done hardwires for over 5 years, and I've seen some real mess, which quite possibly could have been avoided for a few quid but impatience and inexperience has lead to new cables, trim and other pieces which were damaged due to bad installations. Please be careful!! added 9/11/06: (Note To other answeres) Don't use Choc connections or block connectors for wiring stereos as these are open connections with exposed areas of metal if they came into contact with earthed chassis they can cause a short try using bullet style or butt connectors they are more secure and sheilded!

Q:the 2 wires that is connected from the key hole is cut .. how to fix or replace?

If there enough wire left on each side of the cut, say 1, then you could bear about 1/4 of the wire on each side and solder the wires back together making sure you are soldering the same wires together and wrap each soldered connection in electrical tape so they are not able to touch each other. Then a final wrap of tape around them both. If you are not up to soldering you could go to an auto parts shop and get a crimp connector to do the job, again bearing of wire is needed to get a contact through the cut area. If the cut is closer to the switch then there is no option but to replace the switch.....