Electrical Wiring

Take two pieces of wire, one battery and one light bulb. Battery and light bulb should be the same voltage. Attach one end of one piece of wire to one pole of the battery (Soldering it would be best). Attach one end of the other piece of wire to the other pole of the battery and the other end of the wire to side conductor of the light bulb. You are done. To test the conductivity of something you simply touch the center conductor of the light bulb to one end of what you're testing and the other end of the first piece of wire to the other end of what you're testing. If what you're testing conducts electricity the current will run from the battery through what you're testing into the light bulb, out the other side of the light bulb and back to the battery and the light bulb will light up. If what you're testing doesn't conduct electricity, the electricity from the battery will not be able to pass through it to the light bulb and it won't light up. Good luck!

Hooke's Law relates to the elasticity of elastic objects, such as metal springs, and how they stretch in proportion to the force that acts on them.

THE ANSWER TO THIS QUESTION IS A VANDAGRAPH GENERATOR

It depends upon the length of the circuit, but for 50 feet or less a 10 gauge wire should be fine. A short length (15 feet), you could use 12 gauge. If you double the length to 100 feet, you should use 8 gauge. A rule of thumb is to drop down a gauge for every length that is doubled.

There are wire size charts available on the internet. Some can be conservative such as recommending #8 for 50 ft or less at 30 amps. It is better to be conservative than to run too much amperage on a smaller wire that can cause a fire.

As a general rule, 12ga wire can be used in house circuits for 20amps or less. 16ga wire can be used for 15 amps or less such as lighting circuits. That is considering lengths of less than 100 feet.

the meaning of that word is..... when an electrical wiring has a problem like that...... it kills many people only in a few seconds

Three phase electricity is like a three-strand rope of alternating current. Alternating current is conceived of as a sine wave, undulating equally up and down past the ''x" axis. Each "strand" in the rope is separated from its mates by 120 degrees, which is actually more a measure of time than of distance. As they are transmitted down the powerline, they overlap one another; and while one 'strand' is declining, another is ascending, and so on, delivering a smoother, fuller flow (higher RMS) of electricity to the customer's equipment. See the link below for a graphic.

I'll take that as "How are telephone wires connected?" but it's still unclear what you want to know. Telephone wires are connected just as any other wires are connected. By screw connections, by soldering, by crimping.

On an electrical schematic, the symbol for a motor is a circle with the letter M inside of it. On an electrical schematic, the symbol for a motor is a circle with the letter M inside of it.

Visible waves, ie, visible light is piped through a periscope.

Sony came out with an update that allows you to use an eternet cable to transfer data between two PS3's. Make sure both PS3's are updated to the latest version 3.15, hook up both to your t.v. (using different connections like HDMI and AV), turn them both on, go to Settings, System Settings, and go to the option that says data transfer. Follow the steps that come up. I think this will help you:

http://blog.us.playstation.com/2009/12/ps3-3-15-system-software-update/

formula for ac to dc

Luigi Galvani born in Bologna, a city in Italy. He was born September ,1737 to a goldsmith father. His mother was his father's fourth wife.

A potential relay operates on the voltage potential created by the induced voltage in the starting winding of the motor. It is an electromagnetic switch whose coil is wired directly in to the motor circuit. When power is applied to the circuit, the motor starts . As the motor attains its running speed the start winding acts as an auto generator and the voltage potential produced energizes the relay coil which cuts out the start capacitor and the start winding . The start winding still acts as an auto generator , however , and continues to produce enough power to keep the relay energized.

depends on the amperage. 14 AWG for 15 amps, 12 AWG for 20 amps, 8 AWG for 50 amps.

Certain materials are strongly magnetic, such as nickel, iron, cobalt, and their alloys. Whether or not a particular electromagnet can pick up a particular piece of metal (assuming it in one of those on the list) depends on the size and weight of the metal and the strength of the electromagnet. http://en.wikipedia.org/wiki/Magnetism

A Class 2 circuit is the portion of the wiring system between the load side of a Class 2 power source and the connected equipment. Due to its power limitations, a Class 2 circuit considers safety from a fire initiation standpoint and provides acceptable protection from electric shock.

Electric current is that current which generate from electric voltage . it flows on your induction motors also on your computer and your television set's cord and every where which device is operate by electricity. doesn't matter what instrument you are operating. it will flow.

resistivity is not measured in ohms, it is measured in ohm-meters. Assume you mean 1000 ohm-meters. By "cross sectional area 10mm 20mm" I'll assume you mean a "cross section of 10mm by 20mm". You have already defined the thickness to be 10mm, so I can't calculate that, so I'll assume you want the length. That's 3 major corrections I had to make. I may well me making the wrong assumptions. You really need to write carefully. One of the most important traits in an engineer is the ability to write and speak carefully and correctly. anyway, here is my corrected version: A conducting sheet of material has cross sectional of 10mm x 20mm. The material has a resistivity of 1000 ohm-meter. Calculate the length of the materail required to give a resistance of 5 k ohm? the calculation is easy. 1000 ohm-meters / 5000 ohms = 0.2 m = 20 cm

no

Lightning rods are used to direct the force of the strike safely as possible and in a direct line as possible to ground. This direct path usually saves surrounding structures from damage.

A variable transformer is capable of changing its output voltage from 0 to maximum output or over a specific range. It is also named an adjustable transformer.

It depends on the load. A good transformer has over 90% (some as high as 99%) efficiency. So the power drawn by it is a function of the power in the load, plus a small amount due to losses in the transformer.

no