does Electricity run thru or around the wire?
111470
If the wire doesnt have a covering , the answer to your question is yes, electricity runs through and around the wire.
739568
Three  terms you need to know are:\n\nVoltage- This is the "potential" to make current flow through \n                a wire.  (measured in volts)\nCurrent- This is the actual electrons or "electricity"  which \n               "flows" through the wire. (measured in amperes or amps)\nResistance- This is the quality of a substance which tends to \n                      allow or inhibit the flow of electricity.\n\nOne more term is power. This is measured in Watts and is \n given as 1 Watt=(1 volt)(1 amp)\n\nHere's how it works.  You put a voltage across a wire.\nYou decide the voltage.  It does not change.  The wire and bulb has "resistance" and only lets a certain amount or current flow.  The current flows through the bulb and lights the bulb.\n So both 100 watt bulbs and 40 watt bulbs have the same \n120v "voltage".  The difference  is that less current flows through the 40 watt bulb, so it is dimmer.\nRemember that power or "Watts" is current  times voltage.\nso lower wattage means lower current.\nThe question should be how much current does each bulb use.\nThe answer is: 100 watt-5/6 amp\n60 watt- 1/2 amp\n40 watt- 1/3 amp
323586
You only get an electrical shock if you touch both the wire and another thing (in most people's case, the ground) Then the current passes from the cable to the other thing through you. If you're ever silly enough to try, you can hang from the cable with one hand and nothing will happen to you, either.
568450
Overhead power-lines have a high voltage AC current flowing through them, so create a radiating magnetic field for some distance all around the wires.  When this radiated (moving, because the electricity in the cables is changing direction 60 times a second) passes through the aerial on your radio, it is likely to be at some of the same wavelengths/frequencies as something you are trying to receive deliberatly, so you get "the buzz".\n\nCheck this website out for more:
420266
Usually underground wires are surrounded by lots of insulation. Plus, the ground itself is an insulator. So even if it does get wet, the power won't go very far. Then there is the fact that a wire is just a wire. Wires do not really short out from water. It is the devices they connect that short out.
912180
it doesnt.  it conducts electricity.
122327
ELECTRICITY FLOWS IN TWO WAYS, AC & DC.\n\nAC flows alternatively (back and forth between + and -)\n\nDC flows directly (across + and -)
1137609
there is insulation on the wire...........
845276
a. The bear has completed a circuit between the cable and the ground.\n\nElectrical current takes the path of least resistance and will flow through him rather than through the air which has a low conductance.\n\nSince the bear has a resistance the electrical energy will do work (the energy it takes to move electrons from one potential to another) to over come his resistance and some of the energy will be transferred to heat.  This is why people who are electrocuted will burn from the inside out.
613535
Electricity is  flow of electrons in a conductive material like copper or any metals.  The atoms in the conductor are passing the electrons to the next atom in sequence (current flow in Ampere unit). \n\nAnalogy: \nYou can imagine people in line, passing balls in sequence to the next person until the balls reached the other end.\n\nThe force behind the movement of electrons (potential difference in Volt unit), is due to the excessive supply of electron (negative) from one end and lack of supply (Positive) from the other end. (They flow downstream like water).\n\nImagine if you connect two ends of wire to the positive and negative side of the battery. (But don't do it. That is called; short circuit)\n\nIf the wire is cut in the middle and you connect a light bulb between the two cut ends, The light bulb will glow. \n\nHere is the reason;\n\nBecause the light bulb filament (also a metal but doesn't melt easily) is smaller than the wire conductor and does not easily allow the passage of electron (resistance in Ohm unit), The flow of electron will be restricted to a certain amount (like a bottleneck in a pipe) this restriction will cause heat and light due to friction.\n\nMy best tailored answer for you ;=)
864979
The speed of the propagation of the electric field within a wire is limited by the speed of light.  Information cannot travel faster than light, so if you switched on a light bulb millions of miles away it would take a very noticeable lag before you see the light come on.\nFirst the electricity must travel down the wire at a speed no faster than c, then the light emitted by the bulb must return at c.\n\nIt is important to note that although the influence of the electric field propagates at the speed of light, the electrons making up the electric current do not travel this fast themselves since they have mass.  The individual electrons in the current carrying wire travel much more slowly.  The electrons that go "into" one end of the wire are not the same electrons that "come out" of the other end.
309604
NO.  When the lightbulb burns out the filament breaks.  The filament is what the electricity flows through to create light.  When this breaks there is no path for current to flow, therfore no electricity is used.
340925
compare electricity to water, and compare current to a river.\n\nstatic electricity is electricity, but has no current, much like a pond is made of water, but it tends to stand still. Current is the concerted flow of both water and electricity. As electricity flows through a wire, it is much like water flowing through a pipe. \n\nyou can compare voltage to the water pump. The larger the voltage/water pump, the stronger and/or faster the flow.
692204
Just a minor nitpick on what others have said.  Electricity can also be the motion of holes, which can be thought of as the absense of an electron.  But generally it is the motion of electrons.
606935
any wire can carry a charge, and a thunderstorm can hit any wire outside your home.... so if your computer is connected to 1) a power outlet or 2) any other wire such as phone or broadband, there is a risk that lightning will hit the right line outside and send a gigantic current to your computer (destroying it)... so yes, unplug your pc completely (leave the keyboard and mouse...)
20778
The basic rule of thumb is any metal.  Silver, gold, iron, copper, and aluminum are a few examples.  Copper is commonly used in electrical wiring because it is durable, inexpensive, and easy to bend.  \n\nAs previous stated, the "gold connectors" on your cables provide very little help.  In pure definition, they conduct electricity more efficiently than copper.  However, the cost delivers little results unless you are investing $50,000 in your home theater sytem.  Then you might tell a difference.\n\nHope it helps!
663382
light bulb is the load. conductor would be the way to get the power to the load and other devices , the switch is the way to stop and start the flow of current, the insulator will keep the power from leaving its proper path, the ammeter will tell you how fast the power is being used in amps , volt meter will tell you what the pressure of the power is in volts, the battery is your storage of power.